{"id":200245,"date":"2024-11-27T05:25:28","date_gmt":"2024-11-27T11:25:28","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2024\/11\/thermal-photonics-advances-enable-efficient-subambient-daytime-radiative-cooling-for-vertical-surfaces"},"modified":"2024-11-27T05:25:28","modified_gmt":"2024-11-27T11:25:28","slug":"thermal-photonics-advances-enable-efficient-subambient-daytime-radiative-cooling-for-vertical-surfaces","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2024\/11\/thermal-photonics-advances-enable-efficient-subambient-daytime-radiative-cooling-for-vertical-surfaces","title":{"rendered":"Thermal photonics advances enable efficient subambient daytime radiative cooling for vertical surfaces"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/thermal-photonics-advances-enable-efficient-subambient-daytime-radiative-cooling-for-vertical-surfaces3.jpg\"><\/a><\/p>\n<p>Radiative heat transfer is one of the most critical energy transfer mechanisms in nature. However, traditional blackbody radiation, due to its inherent characteristics, such as its non-directional, incoherent, broad-spectrum, and unpolarized nature, results in energy exchange between the radiating body and all surrounding objects, significantly limiting heat transfer efficiency and thermal flow control. These limitations hinder its practical application.<\/p>\n<p>A recent <a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.adn2524\" target=\"_blank\">study<\/a> published in <i>Science<\/i> utilized thermal photonics to achieve cross-band synergistic control of thermal radiation in both angle and spectrum. The researchers then designed a directional emitter with cross-scale symmetry-breaking, angularly asymmetric and spectrally selective thermal emission, achieving daytime subambient radiative cooling on vertical surfaces.<\/p>\n<p>The research team was led by Prof. Wei Li from the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of the Chinese Academy of <i>Science<\/i>s, in collaboration with Prof. Shanhui Fan\u2019s team from Stanford University and Prof. Andrea Alu\u2019s team from the City University of New York.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Radiative heat transfer is one of the most critical energy transfer mechanisms in nature. However, traditional blackbody radiation, due to its inherent characteristics, such as its non-directional, incoherent, broad-spectrum, and unpolarized nature, results in energy exchange between the radiating body and all surrounding objects, significantly limiting heat transfer efficiency and thermal flow control. These limitations [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,219],"tags":[],"class_list":["post-200245","post","type-post","status-publish","format-standard","hentry","category-energy","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/200245","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\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=200245"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/200245\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=200245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=200245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=200245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}