{"id":7322,"date":"2021-09-01T10:15:49","date_gmt":"2021-09-01T08:15:49","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/"},"modified":"2021-09-01T10:15:49","modified_gmt":"2021-09-01T08:15:49","slug":"physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/","title":{"rendered":"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT"},"content":{"rendered":"

<\/p>

ESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, France<\/p>

Infrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing[1], infrared interferometry[2], optical spectroscopy using chemical analysis[3], as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters[4], radiative thermal rectifiers[5], and smart radiative cooling coatings[6]. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi)[7,8] for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials ‘beyond limits’. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.<\/p>

ABOUT THE PRESENTER:<\/strong> Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d’ingenieur) from Ecole Sup\u00e9rieure d’Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.<\/p>

<\/p>

<\/p>

<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"

Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing[1], infrared interferometry[2], optical spectroscopy using chemical analysis[3], as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters[4], radiative thermal rectifiers[5], and smart radiative cooling coatings[6]. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi)[7,8] for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials ‘beyond limits’. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. “Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems.” IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. “Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources.” JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. “Thermal emission of two-color polarized infrared waves from integrated plasmon cavities.” Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. “Silicon nanowires for photovoltaic solar energy conversion.” Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. “Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor.” Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. “Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling.” Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. “Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency.” Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. “On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching.” Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d’ingenieur) from Ecole Sup\u00e9rieure d’Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.<\/p>\n","protected":false},"author":0,"featured_media":7323,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2021-09-03 10:00:00","event_end_date":"2021-09-03 11:00:00","event_speaker_name":"Mr. Sreyash Sarkar, PhD Scholar at ESIEE PARIS, invited by Dr. Nicol\u00f2 Maccaferri.","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg, BSC 0.03\r\nWEBEX ","event_street":"","event_location_link":"","event_zip_code":"","event_city":"","event_country":"LU"},"events-topic":[315],"events-type":[],"organisation":[80],"authorship":[],"acf":[],"yoast_head":"\nPhysics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT - FSTM events I Uni.lu<\/title>\n<meta name=\"description\" content=\"Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. "Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems." IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. "Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources." JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. "Thermal emission of two-color polarized infrared waves from integrated plasmon cavities." Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. "Silicon nanowires for photovoltaic solar energy conversion." Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. "Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor." Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. "Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling." Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. "Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency." Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. "On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching." Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT\" \/>\n<meta property=\"og:description\" content=\"Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. "Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems." IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. "Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources." JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. "Thermal emission of two-color polarized infrared waves from integrated plasmon cavities." Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. "Silicon nanowires for photovoltaic solar energy conversion." Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. "Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor." Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. "Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling." Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. "Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency." Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. "On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching." Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/\" \/>\n<meta property=\"og:site_name\" content=\"FSTM EN\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/fstm.uni.lu\/\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/\",\"url\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/\",\"name\":\"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT - FSTM events I Uni.lu\",\"isPartOf\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2021\/09\/default.jpg\",\"datePublished\":\"2021-09-01T08:15:49+00:00\",\"dateModified\":\"2021-09-01T08:15:49+00:00\",\"description\":\"Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. \\\"Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems.\\\" IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. \\\"Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources.\\\" JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. \\\"Thermal emission of two-color polarized infrared waves from integrated plasmon cavities.\\\" Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. \\\"Silicon nanowires for photovoltaic solar energy conversion.\\\" Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. \\\"Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor.\\\" Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. \\\"Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling.\\\" Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. \\\"Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency.\\\" Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. \\\"On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching.\\\" Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. 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They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. \"Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems.\" IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. \"Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources.\" JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. \"Thermal emission of two-color polarized infrared waves from integrated plasmon cavities.\" Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. \"Silicon nanowires for photovoltaic solar energy conversion.\" Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. \"Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor.\" Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. \"Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling.\" Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. \"Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency.\" Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. \"On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching.\" Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/","og_locale":"en_GB","og_type":"article","og_title":"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT","og_description":"Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. \"Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems.\" IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. \"Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources.\" JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. \"Thermal emission of two-color polarized infrared waves from integrated plasmon cavities.\" Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. \"Silicon nanowires for photovoltaic solar energy conversion.\" Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. \"Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor.\" Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. \"Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling.\" Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. \"Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency.\" Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. \"On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching.\" Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.","og_url":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/","og_site_name":"FSTM EN","article_publisher":"https:\/\/www.facebook.com\/fstm.uni.lu\/","og_image":[{"width":2560,"height":2560,"url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/","url":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/","name":"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT - FSTM events I Uni.lu","isPartOf":{"@id":"https:\/\/www.uni.lu\/fstm-en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#primaryimage"},"image":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#primaryimage"},"thumbnailUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2021\/09\/default.jpg","datePublished":"2021-09-01T08:15:49+00:00","dateModified":"2021-09-01T08:15:49+00:00","description":"Hybrid Physics Seminar3rd of September 2021 at 10:00 amCampus LimpertsbergB\u00e2timent des Sciences \u2013 room BSC 0.03Webex\u00a0linkTalk by Mr. Sreyash SarkarPhD Scholar at ESIEE PARISInvited by Dr. Nicol\u00f2 MaccaferriINFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENTSreyash SarkarESYCOM, Univ Gustave Eiffel, CNRS, CNAM, ESIEE Paris, F-77454 Marne-la-Vall\u00e9e, FranceInfrared metamaterials are of paramount importance for several applications such as infrared radiation sensing, thermal energy harvesting and management, and radiative cooling and have drawn an increasing scientific attention in the past two decades. They are widely used in gas sensing, infrared interferometry, optical spectroscopy using chemical analysis, as well as in novel thermal energy conversion and management devices such as thermo-photovoltaic converters, radiative thermal rectifiers, and smart radiative cooling coatings. Some of these applications necessitate the use of wide band emitters, whereas others necessitate the use of narrow band selective spectral emission. A key requirement for obtaining specific and energy-efficient devices is the quality of wavelength-selective emission. Because the devices are expected to operate at temperatures higher than room temperature, the temperature dependence of the radiative properties is a second critical parameter. In the work to be presented, the design, optimization, fabrication and characterization of tunable MEMS-compatible silicon based metamaterials have been done to be employed for both wideband and wavelength-selective emitters for the different above-cited applications. The design optimization of the selective and wide-band emitters have been attempted through numerical electromagnetic simulations using different techniques such as the Transfer Matrix Method(TMM), the Rigorous Coupled Wave Analysis (RCWA) and the Finite Element Method (FEM). The specific materials that have been investigated are heavily doped grated silicon (Si) for selective emission and micro\/nano-structured Black Silicon (BSi) for broadband emission, thus venturing from periodic to non-periodic nano-structures, highlighting the importance of geometrical asymmetry on the IR absorptance. Particular interest have been taken to evaluate closely through FEM simulations, the dependence of doping, morphological parameters- topographical aspect ratio and the effect of the angle of incidence, on the absorption of BSi. The synergetic effects of a high level of doping on the micro-morphology of black silicon- both volume doping and surface doping(ion-implantation) have been explored in depth, for ascertaining it as one of the most significant parameters for enhancing the radiative optical properties of silicon-based metamaterials. Taking all of the conclusive results in mind; it gives us a fruitful idea about the design rules for making silicon, ultra-black and ultra-broadband. The radiative properties characterization of fabricated samples have been done through direct and indirect acquisition of emissivity and SEM characterization of surface topology have been done to elucidate specific morphological properties of BSi. Following the foundation of an indirect method of extraction of emissivity of BSi, a complete direct emissivity characterization setup designed and developed and results of temperature dependent IR emissivity derived thereof have been discussed. These results will pave way to the formation of a vital temperature dependent radiative properties database of BSi non-existent in literature and of other materials in the future, which will not only yield significant steps towards material applications in a broadband spectrum but also in elucidating physical phenomenon of metamaterials 'beyond limits'. Reported results eventually pave way for a motley of applications including wide and narrow band emitters, gas sensing, and radiative thermal rectifiers- a case in point, which has been particularly explored.REFERENCES1. Hildenbrand, J\u00fcrgen, et al. \"Micromachined mid-infrared emitter for fast transient temperature operation for optical gas sensing systems.\" IEEE Sensors Journal 10.2 (2009): 353-362.2. Inoue, Takuya, et al. \"Design of single-mode narrow-bandwidth thermal emitters for enhanced infrared light sources.\" JOSA B 30.1 (2013): 165-172.3. Miyazaki, H. T., et al. \"Thermal emission of two-color polarized infrared waves from integrated plasmon cavities.\" Applied Physics Letters 92.14 (2008): 141114.4. Peng, Kui\u2010Qing, and Shuit\u2010Tong Lee. \"Silicon nanowires for photovoltaic solar energy conversion.\" Advanced Materials 23.2 (2011): 198-215.5. Joulain, Karl, et al. \"Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor.\" Applied Physics Letters 106.13 (2015): 133505.6. Rephaeli, Eden, Aaswath Raman, and Shanhui Fan. \"Ultrabroadband photonic structures to achieve high-performance daytime radiative cooling.\" Nano letters 13.4 (2013): 1457-1461.7. Savin, Hele, et al. \"Black silicon solar cells with interdigitated back-contacts achieve 22.1% efficiency.\" Nature nanotechnology 10.7 (2015): 624-628. Nguyen, K. N., et al. \"On the optical and morphological properties of microstructured Black Silicon obtained by cryogenic-enhanced plasma reactive ion etching.\" Journal of Applied Physics 113.19 (2013): 194903.ABOUT THE PRESENTER: Sreyash Sarkar received his Bachelor of Engineering in Electrical & Electronic Engineering from Visvesvaraya Technological University, India, earning a gold medal for his scholastic achievements. He completed his Masters (Diplome d'ingenieur) from Ecole Sup\u00e9rieure d'Ing\u00e9nieur en Electronique et Electrotechnique (ESIEE)\u2013Paris, Universit\u00e9 Paris-Est with a sp\u00e9cialisation in Micro & Nanotechnology, with honoris: mention tr\u00e8s bien. He is currently a PhD student at the Health, Energy & Environment Department, of ESIEE Paris affiliated to the ESYCOM, CNRS lab, where he is an MSTIC fellow. His research interests lie in the intersection of infrared radiation, plasmonics, electromagnetics, optical meta-surfaces, and their light-matter interactions.","breadcrumb":{"@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#primaryimage","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2021\/09\/default.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2021\/09\/default.jpg","width":1500,"height":1125},{"@type":"BreadcrumbList","@id":"https:\/\/www.uni.lu\/fstm-en\/events\/physics-seminarinfrared-metamaterials-for-thermal-radiation-sensing-and-management\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.uni.lu\/en"},{"@type":"ListItem","position":2,"name":"Faculty of Science, Technology and Medicine","item":"https:\/\/www.uni.lu\/fstm-en\/"},{"@type":"ListItem","position":3,"name":"Events","item":"https:\/\/www.uni.lu\/fstm-en\/events\/"},{"@type":"ListItem","position":4,"name":"Physics Seminar:INFRARED METAMATERIALS FOR THERMAL RADIATION, SENSING AND MANAGEMENT"}]},{"@type":"WebSite","@id":"https:\/\/www.uni.lu\/fstm-en\/#website","url":"https:\/\/www.uni.lu\/fstm-en\/","name":"FSTM","description":"Faculty of Science, Technology and Medicine I Uni.lu","publisher":{"@id":"https:\/\/www.uni.lu\/fstm-en\/#organization"},"alternateName":"Faculty of Science, Technology and Medicine I University of Luxembourg","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.uni.lu\/fstm-en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.uni.lu\/fstm-en\/#organization","name":"FSTM - University of Luxembourg I Uni.lu","alternateName":"Faculty of Science, Technology and Medicine","url":"https:\/\/www.uni.lu\/fstm-en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.uni.lu\/fstm-en\/#\/schema\/logo\/image\/","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/03\/03111650\/FSTM_SM-Profile_1600x1600px-scaled.jpg","width":2560,"height":2560,"caption":"FSTM - University of Luxembourg I Uni.lu"},"image":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2026\/04\/24144328\/20200609-Belval-Campus_Henri-Goergen-23.jpg","sameAs":["https:\/\/www.facebook.com\/fstm.uni.lu\/","https:\/\/www.linkedin.com\/showcase\/fstm-uni-lu"],"email":"communication@uni.lu","telephone":"+3524666441","address":{"@type":"PostalAddress","streetAddress":"2, place de l\u2019Universit\u00e9","addressLocality":"Esch-sur-Alzette","postalCode":"4365","addressCountry":"LU"},"description":"Faculty of Science, Technology and Medicine I Uni.lu"}]}},"_links":{"self":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events\/7322"}],"collection":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events"}],"about":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/types\/events"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/comments?post=7322"}],"version-history":[{"count":0,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events\/7322\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/media\/7323"}],"wp:attachment":[{"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/media?parent=7322"}],"wp:term":[{"taxonomy":"events-topic","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events-topic?post=7322"},{"taxonomy":"events-type","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/events-type?post=7322"},{"taxonomy":"organisation","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-en\/wp-json\/wp\/v2\/organisation?post=7322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}