{"id":555131,"date":"2023-02-22T16:55:42","date_gmt":"2023-02-22T13:55:42","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/metasurfaces-could-spark-next-generation-of-significantly-thinner-and-cheaper-flat-screens\/"},"modified":"2023-02-22T16:55:42","modified_gmt":"2023-02-22T13:55:42","slug":"metasurfaces-could-spark-next-generation-of-significantly-thinner-and-cheaper-flat-screens","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/metasurfaces-could-spark-next-generation-of-significantly-thinner-and-cheaper-flat-screens\/","title":{"rendered":"#&#8217;Metasurfaces&#8217; could spark next generation of significantly thinner and cheaper flat screens"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a3aa7d8208d1\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a3aa7d8208d1\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/metasurfaces-could-spark-next-generation-of-significantly-thinner-and-cheaper-flat-screens\/#%E2%80%9C%E2%80%98Metasurfaces_could_spark_next_generation_of_significantly_thinner_and_cheaper_flat_screens%E2%80%9D\" >&#8220;&#8216;Metasurfaces&#8217; could spark next generation of significantly thinner and cheaper flat screens&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9C%E2%80%98Metasurfaces_could_spark_next_generation_of_significantly_thinner_and_cheaper_flat_screens%E2%80%9D\"><\/span>&#8220;&#8216;Metasurfaces&#8217; could spark next generation of significantly thinner and cheaper flat screens&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/metasurfaces-could-spa.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/metasurfaces-could-spa.jpg\" data-sub-html=\"Electrically switchable metasurface pixels by flash localized heating. a Illustration of the fabricated sample, composed of designed nanoholes in a silicon film, so-called hole array metasurfaces, embedded in an ITO transparent heater. The pixel\u2019s optical responses are switched by applying a voltage across the contacts, which locally heats the metasurfaces. The thermo-optical effect results in an alteration of the metasurface scattering properties. b The calculated transmission spectra of hole-array metasurfaces together with the normalized electric field profiles (|E|) at both resonances. The parameters of the design are his = 155 nm, d&lt;sub&gt;1&lt;\/sub&gt; = 78 nm, d&lt;sub&gt;2&lt;\/sub&gt; = 101 nm, h&lt;sub&gt;ITO&lt;\/sub&gt; = 380 nm, and pitch \u039b = 350 nm. c Colored SEM image of the fabricated sample. Credit: &lt;i&gt;Light: Science &amp; Applications&lt;\/i&gt; (2023). DOI: 10.1038\/s41377-023-01078-6\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/metasurfaces-could-spa.jpg\" alt=\"'Metasurfaces' could spark next generation of significantly thinner and cheaper flat screens\" title=\"Electrically switchable metasurface pixels by flash localized heating. a Illustration of the fabricated sample, composed of designed nanoholes in a silicon film, so-called hole array metasurfaces, embedded in an ITO transparent heater. The pixel\u2019s optical responses are switched by applying a voltage across the contacts, which locally heats the metasurfaces. The thermo-optical effect results in an alteration of the metasurface scattering properties. b The calculated transmission spectra of hole-array metasurfaces together with the normalized electric field profiles (|E|) at both resonances. The parameters of the design are his = 155 nm, d 1  = 78 nm, d 2  = 101 nm, h ITO  = 380 nm, and pitch \u039b = 350 nm. c Colored SEM image of the fabricated sample. Credit:  Light: Science &amp; Applications  (2023). DOI: 10.1038\/s41377-023-01078-6\" width=\"800\" height=\"529\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Electrically switchable metasurface pixels by flash localized heating. a Illustration of the fabricated sample, composed of designed nanoholes in a silicon film, so-called hole array metasurfaces, embedded in an ITO transparent heater. The pixel\u2019s optical responses are switched by <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>lying a voltage across the contacts, which locally heats the metasurfaces. The thermo-optical effect results in an alteration of the metasurface scattering properties. b The calculated transmission spectra of hole-array metasurfaces together with the normalized electric field profiles (|E|) at both resonances. The parameters of the design are his = 155 nm, d<sub>1<\/sub> = 78 nm, d<sub>2<\/sub> = 101 nm, h<sub>ITO<\/sub> = 380 nm, and pitch \u039b = 350 nm. c Colored SEM image of the fabricated sample. Credit: <i>Light: <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">Science<\/a> &amp; Applications<\/i> (2023). DOI: 10.1038\/s41377-023-01078-6<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Researchers have developed a proof of concept <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a> that could pave the way for next-generation displays beyond current LCDs and LEDs, enabling screens and electronic devices to become thinner, offer higher resolution and be much more energy efficient.<\/p>\n<p>A team at Nottingham Trent University, the Australian National University and the University of New South Wales Canberra in Australia has engineered electrically tunable arrays of nanoparticles called &#8220;metasurfaces,&#8221; which can offer significant benefits over current liquid crystal displays.<\/p>\n<p>Today&#8217;s display market offers a large range of choices, each with its pros and cons. However factors including production costs, lifespan and energy consumption have kept liquid crystal technology the most dominant and popular technology for screens such as TV sets and monitors.<\/p>\n<p>Liquid crystal cells are responsible for switching the transmitted light on and off and are lit by a backlight, with polarizing filters in the front and behind the pixels. They determine the dimension of pixels\u2014the resolution\u2014and play a significant role in managing the device&#8217;s power consumption.\n<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/research-could-spark-n.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/research-could-spark-n.jpg\" data-sub-html=\"Credit: Nottingham Trent University\">\n<figure class=\"article-img text-center\"><img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/research-could-spark-n.jpg\" alt=\"Research could spark \u2018next generation\u2019 flat screens, significantly thinner and cheaper than current screens\" title=\"Credit: Nottingham Trent University\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Credit: Nottingham Trent University<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>The newly engineered metasurface cells\u2014which have tunability and extraordinary light scattering properties\u2014would replace the liquid crystal layer and would not require the polarizers, which are responsible for a large amount of wasted light intensity and energy use in displays.<\/p>\n<p>The metasurfaces are 100-times thinner than liquid crystal cells, offer a tenfold greater resolution and consume 50% less energy.<\/p>\n<p>As part of the study, the team demonstrated that pixels could be electrically programmed and the light could be switched almost 20 times faster than human aversion response time by changing the temperature of the material.<\/p>\n<p>The researchers believe their technology is compatible with modern electronic displays and fills a technological gap for tunable metasurfaces capable of switching light effectively at high frequencies.<\/p>\n<p>&#8220;We have paved the way to break a technology barrier by replacing the liquid crystal layer in current displays with a metasurface, enabling us to make affordable flat screens liquid crystal-free,&#8221; said the project leader Mohsen Rahmani, Professor of Engineering at Nottingham Trent University&#8217;s School of Science and Technology and a Royal Society Wolfson Fellow.<\/p>\n<p>He said, &#8220;The most important metrics of flat panel displays are pixel size and resolution, weight and power consumption. We have addressed each of these with our meta-display concept.<\/p>\n<p>                                            <!-- Google middle Adsense block --><\/p>\n<p>                                        &#8220;Most importantly, our new technology can lead to a huge reduction of energy consumption\u2014this is excellent <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a> given the number of monitors and TV sets being used in households and businesses every single day. We believe it is time for LCD and LED displays to be phased out in the same way as former cathode ray tube (CRT) TVs over the past ten to 20 years.&#8221;<\/p>\n<p>Dragomir Neshev, Director of the ARC Center for Excellence in Transformative Meta-Optical Systems (TMOS) and Australian National University Professor in Physics, said, &#8220;The capability of conventional displays has reached its peak and is unlikely to significantly improve in the future due to multiple limitations. Today there is a quest for fully solid-state flat display technology with a high-resolution and fast refresh rate. We have designed and developed metasurface pixels that can be ideal for the next-generation display.<\/p>\n<p>&#8220;Unlike liquid crystals, our pixels do not require polarized lights for functioning, which will halve screens&#8217; energy consumption.&#8221;<\/p>\n<p>Khosro Zangeneh Kamali, a Ph.D. scholar at the Australian National University and the first author of the study, said, &#8220;Metasurfaces are proven to exhibit extraordinary optical behavior. However, inventing an effective way to control them is still a subject of heavy research. We have proposed electrically programmable silicon metasurfaces, which is a versatile platform for programmable metasurfaces.&#8221;<\/p>\n<p>Dr. Lei Xu, a team member from Nottingham Trent University, said &#8220;There is significant room for further improvements by employing artificial intelligence and machine learning techniques to design and realize even smaller, thinner and more efficient metasurface displays.&#8221;<\/p>\n<p>Professor Andrey Miroshnichenko, a team member from the University of New South Wales Canberra, said, &#8220;Our pixels are made of silicon, which offers a long life span in contrast with organic materials required for other existing alternatives. Moreover, silicon is widely available, CMOS compatible with mature technology, and cheap to produce.&#8221;<\/p>\n<p>He concluded that it was hoped the development could generate a frontier technology in new flat displays. The work is reported in the journal <i>Light: Science &amp; Applications<\/i>.\n                                                                                                                            <\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n                                                Khosro Zangeneh Kamali et al, Electrically programmable solid-state metasurfaces via flash localised heating, <i>Light: Science &amp; Applications<\/i> (2023).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1038\/s41377-023-01078-6\">DOI: 10.1038\/s41377-023-01078-6<\/a><\/p><\/div>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Nottingham Trent University<br \/>\n                                                                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"https:\/\/www.ntu.ac.uk\/\"><br \/>\n                                                        <svg><use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                &#8216;Metasurfaces&#8217; could spark next generation of significantly thinner and cheaper flat screens (2023, February 22)<br \/>\n                                                retrieved 22 February 2023<br \/>\n                                                from https:\/\/techxplore.com\/news\/2023-02-metasurfaces-generation-significantly-thinner-cheaper.html<\/p>\n<p>                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/science\/\" target=\"_blank\" rel=\"noopener\">Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/techxplore.com\/news\/2023-02-metasurfaces-generation-significantly-thinner-cheaper.html\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;&#8216;Metasurfaces&#8217; could spark next generation of significantly thinner and cheaper flat screens&#8221; Electrically switchable metasurface pixels by flash localized heating. a Illustration of the fabricated sample, composed of designed nanoholes in a silicon film, so-called hole array metasurfaces, embedded in an ITO transparent heater. The pixel\u2019s optical responses are switched by applying a voltage across&#8230;<\/p>\n","protected":false},"author":1,"featured_media":555132,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/metasurfaces-could-spa.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-555131","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/555131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=555131"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/555131\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/555132"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=555131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=555131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=555131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}