{"id":142171,"date":"2022-07-13T22:25:40","date_gmt":"2022-07-14T03:25:40","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/07\/atomically-smooth-gold-crystals-help-to-compress-light-for-nanophotonic-applications"},"modified":"2022-07-13T22:25:40","modified_gmt":"2022-07-14T03:25:40","slug":"atomically-smooth-gold-crystals-help-to-compress-light-for-nanophotonic-applications","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/07\/atomically-smooth-gold-crystals-help-to-compress-light-for-nanophotonic-applications","title":{"rendered":"Atomically-smooth gold crystals help to compress light for nanophotonic applications"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/atomically-smooth-gold-crystals-help-to-compress-light-for-nanophotonic-applications2.jpg\"><\/a><\/p>\n<p>Korea Advanced Institute of Science and Technology (KAIST) researchers and their collaborators at home and abroad have successfully demonstrated a new platform for guiding the compressed light waves in very thin van der Waals crystals. Their method to guide the mid-infrared light with minimal loss will provide a breakthrough for the practical applications of ultra-thin dielectric crystals in next-generation optoelectronic devices based on strong light-matter interactions at the nanoscale.<\/p>\n<p>Phonon-polaritons are collective oscillations of ions in polar dielectrics coupled to electromagnetic waves of light, whose <a href=\"https:\/\/phys.org\/tags\/electromagnetic+field\/\" rel=\"tag\" class=\"\">electromagnetic field<\/a> is much more compressed compared to the light wavelength. Recently, it was demonstrated that the phonon-polaritons in thin van der Waals crystals can be compressed even further when the material is placed on top of a highly conductive metal. In such a configuration, charges in the polaritonic crystal are \u201creflected\u201d in the metal, and their coupling with light results in a new type of polariton waves called the image phonon-polaritons. Highly compressed image modes provide strong light-matter interactions, but are very sensitive to the substrate roughness, which hinders their practical application.<\/p>\n<p>Challenged by these limitations, four research groups combined their efforts to develop a unique experimental platform using advanced fabrication and measurement methods. Their findings were published in <i>Science Advances<\/i> on July 13.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Korea Advanced Institute of Science and Technology (KAIST) researchers and their collaborators at home and abroad have successfully demonstrated a new platform for guiding the compressed light waves in very thin van der Waals crystals. Their method to guide the mid-infrared light with minimal loss will provide a breakthrough for the practical applications of ultra-thin [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1635,4],"tags":[],"class_list":["post-142171","post","type-post","status-publish","format-standard","hentry","category-materials","category-nanotechnology"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/142171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=142171"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/142171\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=142171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=142171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=142171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}