{"id":629,"date":"2022-01-01T13:50:41","date_gmt":"2022-01-01T18:50:41","guid":{"rendered":"https:\/\/sites.bu.edu\/biomicroscopy\/?page_id=629"},"modified":"2022-01-28T23:12:29","modified_gmt":"2022-01-29T04:12:29","slug":"imaging-at-trillion-frames-per-second","status":"publish","type":"page","link":"https:\/\/sites.bu.edu\/biomicroscopy\/research\/imaging-at-trillion-frames-per-second\/","title":{"rendered":"Imaging at trillion frames per second"},"content":{"rendered":"<p><strong>Summary:<\/strong> We present <span>a<\/span> method for acquiring <span>a<\/span> sequence of time-resolved images in <span>a<\/span> single shot, called Single-Shot Non-Synchronous Array Photography (SNAP). In SNAP, a pulsed laser beam is split by a diffractive optical element into an array of angled beamlets whose illumination fronts remain perpendicular to the optical axis. Different time delays are imparted to each beamlet by an echelon, enabling them to probe ultrafast dynamics in rapid succession. The beamlets are imaged onto different regions of a camera by a lenslet array. Because the illumination fronts remain flat (head-on) independently of beamlet angle, the exposure time in SNAP is<span> fundamentally<\/span> limited only by the laser pulse duration, akin to <span>a<\/span> &#8220;global shutter&#8221; in conventional imaging. We demonstrate SNAP by capturing the evolution of <span>a<\/span> laser induced plasma filament over 20 frames at an average rate of 4.2 trillion frames per second and a peak rate of 5.7 trillion frames per second.<\/p>\n<ul>\n<ul>\n<li>M. <span>S<\/span>heinman, S. Erramilli, L. Ziegler, M.<span> <\/span>K. Hong, <span>J<\/span>. <span>M<\/span>ertz, \u201cFlatfield ultrafast imaging with single-shot non-synchronous array photography,\u201d Opt. Lett. 47, 577-580 (2022). <a href=\"https:\/\/opg.optica.org\/ol\/abstract.cfm?uri=ol-47-3-577\">link<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment618\" aria-describedby=\"caption-attachment618\" style=\"width: 196px\" class=\"wp-caption alignright\"><img loading=\"lazy\" src=\"\/biomicroscopy\/files\/2022\/01\/SNAP-movie.gif\" alt=\"\" class=\"wp-image-618 size-full\" width=\"186\" height=\"186\" \/><figcaption id=\"caption-attachment618\" class=\"wp-caption-text\">Plasma filament (4.2 Tfps)<\/figcaption><\/figure>\n<p><img loading=\"lazy\" src=\"\/biomicroscopy\/files\/2022\/01\/SNAP-concept-636x308.png\" alt=\"\" class=\"size-medium wp-image-616 alignleft\" width=\"636\" height=\"308\" srcset=\"https:\/\/sites.bu.edu\/biomicroscopy\/files\/2022\/01\/SNAP-concept-636x308.png 636w, https:\/\/sites.bu.edu\/biomicroscopy\/files\/2022\/01\/SNAP-concept-768x372.png 768w, https:\/\/sites.bu.edu\/biomicroscopy\/files\/2022\/01\/SNAP-concept.png 930w\" sizes=\"(max-width: 636px) 100vw, 636px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary: We present a method for acquiring a sequence of time-resolved images in a single shot, called Single-Shot Non-Synchronous Array Photography (SNAP). In SNAP, a pulsed laser beam is split by a diffractive optical element into an array of angled beamlets whose illumination fronts remain perpendicular to the optical axis. Different time delays are imparted [&hellip;]<\/p>\n","protected":false},"author":16427,"featured_media":0,"parent":98,"menu_order":8,"comment_status":"closed","ping_status":"closed","template":"page-templates\/profiles.php","meta":[],"_links":{"self":[{"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/pages\/629"}],"collection":[{"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/users\/16427"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/comments?post=629"}],"version-history":[{"count":10,"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/pages\/629\/revisions"}],"predecessor-version":[{"id":674,"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/pages\/629\/revisions\/674"}],"up":[{"embeddable":true,"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/pages\/98"}],"wp:attachment":[{"href":"https:\/\/sites.bu.edu\/biomicroscopy\/wp-json\/wp\/v2\/media?parent=629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}