{"id":35592,"date":"2025-03-03T09:47:23","date_gmt":"2025-03-03T08:47:23","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-en\/?post_type=news&#038;p=35592"},"modified":"2025-07-03T12:19:46","modified_gmt":"2025-07-03T10:19:46","slug":"diamonds-for-quantum-technologies-and-biomedicine","status":"publish","type":"news","link":"https:\/\/www.uni.lu\/fstm-en\/news\/diamonds-for-quantum-technologies-and-biomedicine\/","title":{"rendered":"Diamonds for the advancement of quantum technologies and biomedicine"},"content":{"rendered":"\n<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\">\n<p>When most people think of diamonds, they picture jewelry, but researchers at the University of Luxembourg have been investigating a very different side of this material. They are exploring diamonds as a material for high-power electronics and quantum optics.&nbsp;By doping diamond with boron, researchers can alter its properties, making it electrically conductive.<\/p>\n\n\n\n<p>In collaboration with other international universities, the University of Luxembourg has made significant contributions to this <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-55353-0\">research<\/a>, delving into its potential applications in quantum computing and biomedical imaging. For instance, <a href=\"https:\/\/www.uni.lu\/fstm-en\/people\/ludger-wirtz\/\">Ludger Wirtz<\/a>, Full Professor in Physics, <a href=\"https:\/\/www.linkedin.com\/in\/dr-sven-reichardt-579321168\/?originalSubdomain=de\">Sven Reichardt<\/a>, Research Scientist, <a href=\"https:\/\/www.uni.lu\/fstm-en\/people\/amirhossein-adavoudi-jolfaei\/\">Amir Hossein Talebi<\/a>, Student, and <a href=\"https:\/\/www.linkedin.com\/in\/nicol%C3%B2-maccaferri-a5695533\/\">Nicol\u00f2 Maccaferri,<\/a> Former Postdoctoral researcher at Uni.lu and now Professor at Ume\u00e5 University, took part in the theory and modeling part. Their work guided the experiments and enabled the interpretation of the results.<\/p>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<h2 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"new-real-world-applications-of-boron-doped-diamond\"\n    >\nNew real-world applications of boron-doped diamond<\/h2>\n\n\n\n<p>Boron-doped diamond, a wide semiconductor, has long been studied for its electronic properties. Recently, researchers discovered a new phenomenon: the presence of <em>inter-valence band<\/em> <em>plasmons<\/em>. This means that when boron is added to the diamond, it creates tiny gaps where electrons are missing, called holes.&nbsp;Although scientists&nbsp;already&nbsp;understood the effects of boron doping, they hadn\u2019t identified the connection between charge carriers and plasmonic behavior. In fact, these holes cause electrons in the diamond to move in a way that had never been observed before.&nbsp;This discovery could have significant implications for quantum technologies and opens the door to using diamond in new applications.<\/p>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<section class=\"wp-block-unilux-blocks-quote-people\">\n    <div class=\"quote-people\" role=\"group\">\n        <figure class=\"quote-people__body\">\n            <blockquote class=\"quote-people__blockquote\">\n    <span class=\"quote-people__quote\">\u201f<\/span>\n    The uniqueness of boron-doped nanodiamonds lies in its ability to exhibit metallic-like properties. Normally, diamond is deeply insulating and does not support charge oscillations at low energies. When doped with boron, it creates holes in the valence band and charge oscillations, or plasmons, are to be expected. But the plasmons that our experimental colleagues found had a completely different oscillation frequency than expected. Finding this frequency difference was the aim of our theoretical research.\u201d\n<\/blockquote>\n<div class=\"wp-block-unilux-blocks-wrapper quote-people__visual\"><figure class=\"wp-block-dev4-reusable-blocks-image  object-fit--cover\">\n    \n<img decoding=\"async\" class=\"wp-block-image unilux-custom-image-block\"\n                alt=\"\"\n            src=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2025\/02\/Screenshot-2025-02-17-083855.png\"\n                srcset=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2025\/02\/Screenshot-2025-02-17-083855-300x210.png 300w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2025\/02\/Screenshot-2025-02-17-083855-768x538.png 768w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/4\/2025\/02\/Screenshot-2025-02-17-083855.png 780w\"\n                style=\"object-position: 60.00% 31.00%; font-family: &quot;object-fit: cover; object-position: 60.00% 31.00%;&quot;; aspect-ratio: 1\/1; object-fit: cover; width: 100%;\"\n        loading=\"lazy\"\n\/>    <\/figure><\/div>\n\n<div class=\"wp-block-unilux-blocks-wrapper quote-people__figcaption\">\n<p class=\"quote-people__author wp-block-unilux-blocks-plain-text\">Ludger Wirtz<\/p>\n\n\n<p class=\"quote-people__position wp-block-unilux-blocks-plain-text\">Full Professor in Physics<\/p>\n\n<div class=\"wp-block-unilux-blocks-simple-cta\">\n    <a\n        href=\"https:\/\/www.uni.lu\/fstm-en\/people\/ludger-wirtz\/\"\n        title=\"View Profile\"\n        class=\"link-text link-text--icon quote-people__link\"\n        target=\"\"\n    >\n        <span class=\"link-text__body\">\n            <span class=\"link-text__name\">View profile<\/span>\n        <\/span>\n        <svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--arrow-right \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--arrow-right\"><\/use><\/svg>    <\/a>\n<\/div>\n<\/div>\n        <\/figure>\n    <\/div>\n<\/section>\n\n\n<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<h3 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"impact-on-quantum-technologies-and-biomedicine\"\n    >\nImpact on quantum technologies and biomedicine<\/h3>\n\n\n\n<p>The discovery of inter-valence band plasmons in nanodiamonds doped with boron holds significant promise for quantum information technologies. Quantum computing, quantum key distribution and quantum optics all rely on efficient single-photon emitters\u2014devices that emit light particles one by one with well-defined energies. These photons can then be used to create entangled photon pairs, which are essential for secure communication and quantum computing.<\/p>\n\n\n\n<p>The ability to control the diamond\u2019s plasmonic response is particularly valuable in this context. By adjusting the energy of the emitted photons, it is possible to achieve greater precision in quantum systems. This is challenging to achieve in practice. <\/p>\n\n\n\n<p>Another exciting application for boron-doped diamond plasmonics lies in the biomedical field. Researchers explore tiny crystal nanoparticles for medical imaging. They treat these nanoparticles with special molecules to target specific areas of the body. When exposed to different types of light\u2014such as infrared, visible, or UV light\u2014the nanoparticles help create detailed and precise images of them.<\/p>\n\n\n\n<p>In short, boron-doped diamond nanoparticles have a unique advantage because of the possibility to adjust their properties. This notably improves how they interact with light, making&nbsp;the imaging process even more precise. &#8220;Of course, more research into the biocompatibility of nanodiamonds is necessary before any medical applications can be fully realised.&#8221;, adds Prof. Ludger Wirtz.\u201c<\/p>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<h4 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"the-future-of-diamond-based-quantum-technologies\"\n    >\nThe future of diamond-based quantum technologies<\/h4>\n\n\n\n<p>The theoretical work conducted by the University of Luxembourg\u2019s team is far from over. Moving forward, they plan to explore how photons released by nanodiamonds can interact with certain vibrations in the material. These interactions could provide the foundation for optical quantum computers. However, significant work remains to be done to address issues such as <em>decoherence<\/em>, a phenomenon that can destroy the quantum properties of the system.<\/p>\n\n\n\n<p>This work aligns with the recently funded FNR project <a href=\"https:\/\/www.uni.lu\/research-en\/research-projects\/quancom\/\">QUANCOM<\/a>, which focuses on quantum dynamics in condensed matter systems. \u201cCollaborating with experts like Prof. <a href=\"https:\/\/www.uni.lu\/fstm-en\/people\/aurelia-chenu\/\">Aur\u00e9lia Chenu<\/a>, coordinator of the QUANCOM network, we hope to refine the understanding of quantum interactions and minimise the effects of environmental interference.\u201d, shares Prof. Ludger Wirtz.<\/p>\n\n\n\n<p>As the field advances, further exploration of these plasmons in diamond could lead to the development of new, high-performance quantum technologies. While challenges remain, there is great potential for diamond-based materials to transform quantum technologies, and this discovery is a key step in that direction.<\/p>\n\n\n\n<p><em><a href=\"https:\/\/www.nature.com\/articles\/s41467-024-55353-0\">Read the original paper here<\/a>.<\/em><\/p>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-md\"><\/div>\n\n\n<p><strong>The University of Luxembourg collaborated with:<\/strong><\/p>\n\n\n\n<p>Giuseppe Strangi,&nbsp;Case Western Reserve University; <\/p>\n\n\n\n<p>R. Mohan Sankaran, University of Illinois Urbana-Champaign; <\/p>\n\n\n\n<p>Souvik Bhattacharya, lead author, a graduate student at University of Illinois Urbana Champaign; <\/p>\n\n\n\n<p>Jonathan Boyd, Case Western Reserve University; Valentin Allard and Aude Lereu,&nbsp;Marseille University.<\/p>\n\n\n\n<p><em>Research supported by the National Science Foundation.<\/em><\/p>\n<\/div><\/section>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>In collaboration with other international universities, the University of Luxembourg has made significant contributions to this research, delving into its potential applications in quantum computing and biomedical imaging. For instance, Ludger Wirtz, Full Professor in Physics, Sven Reichardt, Research Scientist, Amir Hossein Talebi, Student, and Nicol\u00f2 Maccaferri, Former Postdoctoral researcher at Uni.lu and now Professor at Ume\u00e5 University, took part in the theory and modeling part. Their work guided the experiments and enabled the interpretation of the results.<\/p>\n","protected":false},"author":325,"featured_media":35610,"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},"news-category":[8],"news-topic":[25],"organisation":[80,29],"authorship":[325],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Boron-doped diamonds - FSTM - University of Luxembourg I Uni.lu<\/title>\n<meta name=\"description\" content=\"Researchers at Uni.lu are exploring boron-doped diamonds as a material for high-power electronics and quantum optics.\" \/>\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\/news\/diamonds-for-quantum-technologies-and-biomedicine\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Diamonds for the advancement of quantum technologies and biomedicine\" \/>\n<meta property=\"og:description\" content=\"In collaboration with other international universities, the University of Luxembourg has made significant contributions to this research, delving into its potential applications in quantum computing and biomedical imaging. 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