{"id":8009,"date":"2012-10-28T16:40:42","date_gmt":"2012-10-28T21:40:42","guid":{"rendered":"http:\/\/bucktownbell.com\/?p=8009"},"modified":"2012-10-28T16:46:54","modified_gmt":"2012-10-28T21:46:54","slug":"optical-conveyors-a-class-of-active-tractor-beams","status":"publish","type":"post","link":"http:\/\/bucktownbell.com\/?p=8009","title":{"rendered":"Optical conveyors: A class of active tractor beams"},"content":{"rendered":"<blockquote><p>A tractor beam is a traveling wave that can transport illuminated material along its length back to its source.<\/p><\/blockquote>\n<p>via <a href=\"http:\/\/physics.nyu.edu\/grierlab\/conveyor7c\/\">Optical conveyors: A class of active tractor beams<\/a>.<\/p>\n<div class=\"abstract centering centering\">\n<blockquote>\n<h6><strong>Abstract<\/strong>.<\/h6>\n<p class=\"p\">We experimentally demonstrate a class of tractor beams created by coherently superposing coaxial Bessel beams. These optical conveyors have periodic intensity variations along their axes that act as highly effective optical traps for micrometer-scale objects. Varying the Bessel beams&#8217; relative phase shifts the traps axially thereby selectively transports trapped objects either downstream or upstream along the length of the beam. The same methods used to project a single optical conveyor can project arrays of independent optical conveyors, allowing bi-directional transport in three dimensions.<\/p>\n<\/blockquote>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A tractor beam is a traveling wave that can transport illuminated material along its length back to its source. via Optical conveyors: A class of active tractor beams. Abstract. We experimentally demonstrate a class of tractor beams created by coherently &hellip; <a href=\"http:\/\/bucktownbell.com\/?p=8009\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[737],"tags":[100,952,953],"class_list":["post-8009","post","type-post","status-publish","format-standard","hentry","category-stem","tag-interesting-research","tag-nyu","tag-tractor-beams"],"_links":{"self":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/8009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8009"}],"version-history":[{"count":3,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/8009\/revisions"}],"predecessor-version":[{"id":8012,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/8009\/revisions\/8012"}],"wp:attachment":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8009"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}