{"id":111,"date":"2007-11-12T00:01:08","date_gmt":"2007-11-12T05:01:08","guid":{"rendered":"http:\/\/arxivblog.com\/?p=111"},"modified":"2007-11-12T09:33:48","modified_gmt":"2007-11-12T14:33:48","slug":"near-to-far-field-magnification","status":"publish","type":"post","link":"https:\/\/arxivblog.com\/?p=111","title":{"rendered":"Near-to-far field image magnification"},"content":{"rendered":"<p><a href=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2007\/11\/near-field-lens.jpg\" title=\"Near field lens\"><img decoding=\"async\" src=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2007\/11\/near-field-lens.jpg\" alt=\"Near field lens\" \/><\/a><\/p>\n<p>There was a time when magnifying glasses were good for nothing but fryin&#8217; ants and helping the over-60s with newsprint.  Now everyone&#8217;s a-peekin&#8217; and a-peerin&#8217;  at things that are even smaller than the wavelength of visible light.<\/p>\n<p>The conventional thinkin is that you can&#8217;t see nothing smaller than about a quarter of the wavelength of light; light&#8217;s just gonna go round anything as small as that, right?<\/p>\n<p>Not quite. Turns out that in the region within a wavelength of a light emitter, the so-called near field,  light interacts with things in all kindsa interesting ways. And if ya could only see the near field, you might get a handle on what&#8217;s going on.<\/p>\n<p>There are various attempts to do this, such as near-field microscopy, which all involve circumventing the near field in some way such as sticking a probe into this forbidden region.<\/p>\n<p>Now Vlad Shalaev at Purdue University in Indiana has designed the gadget we&#8217;ve all been a-waitin&#8217; and a-hopin&#8217; for: a lens that can magnify a near-field image into a far field one.  Shalaev&#8217;s lens is made outta metamaterial that channels electric and magnetic fields away from a point source and redistributes them over a broader area, in other words it magnifies them.<\/p>\n<p>There&#8217;s no hope for them ants now.<\/p>\n<p>Ref: <a href=\"http:\/\/arxiv.org\/abs\/0711.0183\">arxiv.org\/abs\/0711.0183<\/a>: Engineering Space for Light via Transformation Optics<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There was a time when magnifying glasses were good for nothing but fryin&#8217; ants and helping the over-60s with newsprint. Now everyone&#8217;s a-peekin&#8217; and a-peerin&#8217; at things that are even smaller than the wavelength of visible light. The conventional thinkin is that you can&#8217;t see nothing smaller than about a quarter of the wavelength of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-111","post","type-post","status-publish","format-standard","hentry","category-seein-the-light"],"_links":{"self":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=111"}],"version-history":[{"count":0,"href":"https:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/111\/revisions"}],"wp:attachment":[{"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}