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Lett."],"published-print":{"date-parts":[[2021,4,1]]},"abstract":"<jats:p>\n                    Existing streak-camera-based two-dimensional (2D) ultrafast imaging techniques are limited by long acquisition time, the trade-off between spatial and temporal resolutions, and a reduced field of view. They also require additional components, customization, or active illumination. Here we develop compressed ultrafast tomographic imaging (CUTI), which passively records 2D transient events with a standard streak camera. By grafting the concept of computed tomography to the spatiotemporal domain, the operations of temporal shearing and spatiotemporal integration in a streak camera\u2019s data acquisition can be equivalently expressed as the spatiotemporal projection of an\n                    <jats:inline-formula>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\">\n                        <mml:mo stretchy=\"false\">(<\/mml:mo>\n                        <mml:mi>x<\/mml:mi>\n                        <mml:mo>,<\/mml:mo>\n                        <mml:mi>y<\/mml:mi>\n                        <mml:mo>,<\/mml:mo>\n                        <mml:mi>t<\/mml:mi>\n                        <mml:mo stretchy=\"false\">)<\/mml:mo>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    datacube from a certain angle. Aided by a new, to the best of our knowledge, compressed-sensing reconstruction algorithm, the 2D transient event can be accurately recovered in a few measurements. CUTI is exhibited as a new imaging mode universally adaptable to most streak cameras. Implemented in an image-converter streak camera, CUTI captures the sequential arrival of two spatially modulated ultrashort ultraviolet laser pulses at 0.5 trillion frames per second. Applied to a rotating-mirror streak camera, CUTI records an amination of fast-bouncing balls at 5,000 frames per second.\n                  <\/jats:p>","DOI":"10.1364\/ol.420737","type":"journal-article","created":{"date-parts":[[2021,3,8]],"date-time":"2021-03-08T13:00:09Z","timestamp":1615208409000},"page":"1788","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Compressed ultrafast tomographic imaging by passive spatiotemporal projections"],"prefix":"10.1364","volume":"46","author":[{"given":"Yingming","family":"Lai","sequence":"first","affiliation":[{"name":"Institut National de la Recherche Scientifique"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruibo","family":"Shang","sequence":"additional","affiliation":[{"name":"Dartmouth College"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian-Yves","family":"C\u00f4t\u00e9","sequence":"additional","affiliation":[{"name":"Axis Photonique Inc."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xianglei","family":"Liu","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Scientifique"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antoine","family":"Laram\u00e9e","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Scientifique"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fran\u00e7ois","family":"L\u00e9gar\u00e9","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Scientifique"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1486-3398","authenticated-orcid":true,"given":"Geoffrey P.","family":"Luke","sequence":"additional","affiliation":[{"name":"Dartmouth College"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5983-0488","authenticated-orcid":true,"given":"Jinyang","family":"Liang","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Scientifique"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2021,4,1]]},"reference":[{"key":"ol-46-7-1788-R1","doi-asserted-by":"publisher","first-page":"1113","DOI":"10.1364\/OPTICA.5.001113","volume":"5","author":"Liang","year":"2018","journal-title":"Optica"},{"key":"ol-46-7-1788-R2","doi-asserted-by":"publisher","first-page":"105901","DOI":"10.1088\/1361-6633\/aacca1","volume":"81","author":"Faccio","year":"2018","journal-title":"Rep. 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