{"id":140,"date":"2016-04-09T19:46:59","date_gmt":"2016-04-09T17:46:59","guid":{"rendered":"http:\/\/psebbah.ph.biu.ac.il\/?page_id=140"},"modified":"2016-04-09T19:46:59","modified_gmt":"2016-04-09T17:46:59","slug":"in-mesoscopic-optics-and-complex-media-metamaterials-with-flexural-waves","status":"publish","type":"page","link":"https:\/\/psebbah.ph.biu.ac.il\/?page_id=140","title":{"rendered":"IN MESOSCOPIC OPTICS AND COMPLEX MEDIA \u201cMETAMATERIALS WITH FLEXURAL WAVES\u201d"},"content":{"rendered":"<p style=\"text-align: center\"><strong>Opening positions <\/strong><\/p>\n<p style=\"text-align: center\"><strong>\u00a0<\/strong><strong>in Mesoscopic Optics and Complex Media\u00a0<\/strong><strong><em>\u201cMetamaterials with Flexural Waves\u201d<\/em><\/strong><\/p>\n<p><a href=\"https:\/\/psebbah.ph.biu.ac.il\/wp-content\/uploads\/2016\/04\/METAMATERIALS-WITH-FLEXURAL-WAVES.jpg\" rel=\"attachment wp-att-141\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-141 alignleft\" src=\"https:\/\/psebbah.ph.biu.ac.il\/wp-content\/uploads\/2016\/04\/METAMATERIALS-WITH-FLEXURAL-WAVES.jpg\" alt=\"METAMATERIALS WITH FLEXURAL WAVES\" width=\"254\" height=\"204\" \/><\/a>By replacing atoms with man-made elementary structures, new artificial materials may provide novel functionalities. These so-called <strong>metamaterials<\/strong> may bend waves in an unusual manner (&#8220;negative refraction&#8221;), hide objects (&#8220;cloaking&#8221;), focus light below the diffraction limit, &#8230;<\/p>\n<p>Flexural waves in thin plates are excellent candidates to test &#8220;crazy&#8221; ideas proposed by theoreticians. One such idea is <strong>transformational optics<\/strong>, a mathematical technique for designing such artificial materials. By using the appropriate coordinate transformation, media containing gradients in optical properties are designed to mimic curved geometries of space-time to hide objects. We want to investigate the broadband <strong>cloaking<\/strong> of objects using a number of active sources located outside the object. The challenge is to cancel the elastic field around the object without interfering with the incident field away from the target. Such a device should give the illusion that the object has disappeared or could show a different object instead (collaboration with Prof. M. Wegener, KIT, Germany).<\/p>\n<p><strong>Patrick SEBBAH<\/strong>, Director of Research at CNRS France, has recently moved to Israel and is now a new professor at the Physics Department, Bar Ilan University.<\/p>\n<p>He offers 2 post Doc, 2 PhD programs, + projects for undergraduate students.<\/p>\n<p>Includes: Metamaterials, Negative Refraction, Cloaking, Elastic Waves, Disordered Media, Active Media, Experimental Acoustic, Numerical Modeling. No strong background in fundamental Physics required.<\/p>\n<p><em>For French students : grants available from the French Embassy. (deadline Jan. 31)<\/em>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Opening positions \u00a0in Mesoscopic Optics and Complex Media\u00a0\u201cMetamaterials with Flexural Waves\u201d By replacing atoms with man-made elementary structures, new artificial materials may provide novel functionalities. These so-called metamaterials may bend waves in an unusual manner (&#8220;negative refraction&#8221;), hide objects (&#8220;cloaking&#8221;), focus light below the diffraction limit, &#8230; Flexural waves in&#8230; <a class=\"continue-reading-link\" href=\"https:\/\/psebbah.ph.biu.ac.il\/?page_id=140\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a> <a class=\"continue-reading-link\" href=\"https:\/\/psebbah.ph.biu.ac.il\/?page_id=140\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=\/wp\/v2\/pages\/140"}],"collection":[{"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=140"}],"version-history":[{"count":0,"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=\/wp\/v2\/pages\/140\/revisions"}],"wp:attachment":[{"href":"https:\/\/psebbah.ph.biu.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}