{"id":658,"date":"2021-02-19T21:33:02","date_gmt":"2021-02-19T21:33:02","guid":{"rendered":"https:\/\/live-optics-wp.pantheonsite.io\/emcleod\/?page_id=658"},"modified":"2021-03-15T17:31:56","modified_gmt":"2021-03-15T17:31:56","slug":"tunable-acoustic-gradient-index-lenses","status":"publish","type":"page","link":"https:\/\/wp.optics.arizona.edu\/emcleod\/tunable-acoustic-gradient-index-lenses\/","title":{"rendered":"Research: Tunable acoustic gradient-index lenses"},"content":{"rendered":"<p><a href=\"http:\/\/wp.optics.arizona.edu\/emcleod\/wp-content\/uploads\/sites\/14\/2015\/09\/TAGWebsiteImage.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-79\" src=\"http:\/\/wp.optics.arizona.edu\/emcleod\/wp-content\/uploads\/sites\/14\/2015\/09\/TAGWebsiteImage.png\" alt=\"TAGWebsiteImage\" width=\"600\" height=\"350\" srcset=\"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-content\/uploads\/sites\/14\/2015\/09\/TAGWebsiteImage.png 600w, https:\/\/wp.optics.arizona.edu\/emcleod\/wp-content\/uploads\/sites\/14\/2015\/09\/TAGWebsiteImage-300x175.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>In this project, which we are no longer working on, we developed tunable acoustic gradient index of refraction lenses for the high-speed control of light. These lenses change their focal length in microsecond timescales, and are also capable of producing complex spatial patterns such as multi-scale Bessel beams. The lenses operate by using sound waves that are generated by a vibrating piezoelectric to rapidly modulate the local refractive index of a liquid. This leads to spatial gradients in refractive index that produce the desired lensing behavior. Applications include microscopy, machine vision, and free-space communications, among others.<\/p>\n<p>This research was commercialized by the company TAG Optics, which has won numerous awards for its products, including an <a href=\"https:\/\/www.rdworldonline.com\/rd-100-archive\/?YEAR=2013\" target=\"_blank\" rel=\"noopener noreferrer\">R&amp;D 100 Award<\/a>, a <a href=\"https:\/\/www.youtube.com\/watch?v=qpGwCGU9bNo\" target=\"_blank\" rel=\"noopener noreferrer\">Prism Award<\/a>, and honorable mention for the a href=&#8221;https:\/\/www.laserfocusworld.com\/software-accessories\/positioning-support-accessories\/article\/16561104\/tag-optics-varifocal-lens-20-wins-honorable-mention-video&#8221; target=&#8221;_blank&#8221; rel=&#8221;noopener&#8221;&gt;Laser Focus World Innovation Award. <a href=\"https:\/\/shop.mitutoyo.eu\/web\/mitutoyo\/en\/mitutoyo\/TAGLENS\/TAGLENS\/index.xhtml\" target=\"_blank\" rel=\"noopener noreferrer\">TAG Optics has since been bought the company Mitotoyo, which continues to sell TAG lenses.<\/a><\/p>\n<p>A few&nbsp;relevant&nbsp;articles include (see <a href=\"http:\/\/wp.optics.arizona.edu\/emcleod\/publications\/\">publications<\/a> for all related articles):<\/p>\n<ul>\n<li style=\"font-size: 85%\">Alexandre Mermillod-Blondin, Euan McLeod, and Craig B. Arnold, \u201c<a href=\"http:\/\/www.opticsinfobase.org\/ol\/abstract.cfm?URI=ol-33-18-2146\" target=\"_blank\" rel=\"noopener noreferrer\">High-speed varifocal imaging with a tunable acoustic gradient index of refraction lens<\/a>,\u201d <i>Optics Letters<\/i>, <strong>33<\/strong> (18) 2146-2148 (2008).<\/li>\n<li style=\"font-size: 85%\">Euan McLeod and Craig B. Arnold, \u201c<a href=\"http:\/\/dx.doi.org\/10.1063\/1.2763947\" target=\"_blank\" rel=\"noopener noreferrer\">Mechanics and refractive power optimization of tunable acoustic gradient lenses<\/a>,\u201d <i>Journal of Applied Physics<\/i> <strong>102<\/strong>, 033104 (2007).<\/li>\n<li style=\"font-size: 85%\">Euan McLeod, Adam B. Hopkins, and Craig B. Arnold, \u201c<a href=\"http:\/\/www.opticsinfobase.org\/abstract.cfm?URI=ol-31-21-3155\" target=\"_blank\" rel=\"noopener noreferrer\">Multiscale Bessel beams generated by a tunable acoustic gradient index of refraction lens<\/a>,\u201d <i>Optics Letters<\/i> <strong>31<\/strong> (21), 3155-3157 (2006).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In this project, which we are no longer working on, we developed tunable acoustic gradient index of refraction lenses for the high-speed control of light. These lenses change their focal length in microsecond timescales, and are also capable of producing complex spatial patterns such as multi-scale Bessel beams. The lenses operate by using sound waves that are generated by a<\/p>\n","protected":false},"author":25,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-658","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/pages\/658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/comments?post=658"}],"version-history":[{"count":6,"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/pages\/658\/revisions"}],"predecessor-version":[{"id":675,"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/pages\/658\/revisions\/675"}],"wp:attachment":[{"href":"https:\/\/wp.optics.arizona.edu\/emcleod\/wp-json\/wp\/v2\/media?parent=658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}