BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Israel BEGIN:DAYLIGHT DTSTART:20210326T030000 TZOFFSETFROM:+0200 TZOFFSETTO:+0300 RRULE:FREQ=YEARLY;BYDAY=-1FR;BYMONTH=3 TZNAME:IDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20211031T010000 TZOFFSETFROM:+0300 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:IST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20210925T164153Z UID:F66AFB05-4D91-4EFB-BC4F-3638390112D1 DTSTART;TZID=Israel:20210616T130000 DTEND;TZID=Israel:20210616T140000 DESCRIPTION:TAU Seminar of\n\nOri Katz\n\nThe Hebrew Universitry of Jerusal em\n\nCo-sponsored by: Tel Aviv University\n\nSpeaker(s): Ori Katz\, \n\nA genda: \nScattering of light in complex samples such as biological tissue renders most samples opaque to conventional optical imaging techniques\, a problem of great practical importance [1]. However\, although random\, sc attering of coherent light generates speckle patterns with universal stati stics and angular and spatial correlations\, that allow computational retr ieval of diffraction-limited imaging [2\,3]. Furthermore\, the random temp oral fluctuations of speckle patterns\, formed by light propagation in dyn amic samples\, can be exploited for super-resolution photo-acoustic and ac ousto-optic imaging\, deep inside scattering samples [4-7].\n\nI will pres ent the fundamental principles and limitations of these novel approaches\, as well as some of our recent efforts in utilizing these new insights for the development of novel endoscopic techniques [8].\n\nReferences\n\n[1] Z. Merali\, Optics: Super vision\, Nature 518\, 158 (2015).\n\n[2] O. Katz et al. Non-invasive single-shot imaging through scattering layers and aro und corners via speckle\n\ncorrelations. Nature photonics\, 8(10)\, 784-79 0 (2014).\n\n[3] T. Yeminy\, O. Katz\, Guidestar-free image-guided wavefro nt shaping\, Science Advances\, 7\, 21 (2021).\n\n[4] T. Chaigne et al. Su per-resolution photoacoustic fluctuation imaging with multiple speckle ill umination\, Optica\n\n3 (1)\, 54-57 (2016).\n\n[5] E. Hojman et al. Photoa coustic imaging beyond the acoustic diffraction-limit with dynamic speckle illumination\n\nand sparse joint support recovery\, Optics Express 25 (5) \, 4875-4886 (2016).\n\n[6] D. Doktofsky et al. Acousto optic imaging beyo nd the acoustic diffraction limit using speckle decorrelation\,\n\nCommuni cations Physics 3 (1)\, 1-8 (2020).\n\n[7] M. Rosenfeld\, D. Doktofsky\, G . Weinberg\, Y. Li\, L. Tian\, O. Katz\, Acousto-optic Ptychography\,\n\na rXiv:2101.10099 (2021).\n\n[8] N.Shekel et al. Using fiber-bending-generat ed speckles for improved working distance and background rejection\n\nin l ensless micro-endoscopy\, Optics Letters 45 (15)\, 4288-4291 (2020).\n\nVi rtual: https://events.vtools.ieee.org/m/283061 LOCATION:Virtual: https://events.vtools.ieee.org/m/283061 ORGANIZER:nshaked@tau.ac.il SEQUENCE:1 SUMMARY:TAU Seminar: Imaging with scattered light: Exploiting speckle to se e deeper and sharper URL;VALUE=URI:https://events.vtools.ieee.org/m/283061 X-ALT-DESC:Description: <br /><p>TAU Seminar of</p>\n<p>Ori Katz</p>\n<p>Th e Hebrew Universitry of Jerusalem&nbsp\;</p><br /><br />Agenda: <br /><p>S cattering of light in complex samples such as biological tissue renders mo st samples opaque to conventional optical imaging techniques\, a problem o f great practical importance [1]. However\, although random\, scattering o f coherent light generates speckle patterns with universal statistics and angular and spatial correlations\, that allow computational retrieval of d iffraction-limited imaging [2\,3]. Furthermore\, the random temporal fluct uations of speckle patterns\, formed by light propagation in dynamic sampl es\, can be exploited for super-resolution photo-acoustic and acousto-opti c imaging\, deep inside scattering samples [4-7].</p>\n<p>I will present t he fundamental principles and limitations of these novel approaches\, as w ell as some of our recent efforts in utilizing these new insights for the development of novel endoscopic techniques [8].</p>\n<p><strong>References </strong></p>\n<p>[1] Z. Merali\, Optics: Super vision\, Nature 518\, 158 (2015).</p>\n<p>[2] O. Katz et al. Non-invasive single-shot imaging throug h scattering layers and around corners via speckle</p>\n<p>correlations. N ature photonics\, 8(10)\, 784-790 (2014).</p>\n<p>[3] T. Yeminy\, O. Katz\ , Guidestar-free image-guided wavefront shaping\, Science Advances\, 7\, 2 1 (2021).</p>\n<p>[4] T. Chaigne et al. Super-resolution photoacoustic flu ctuation imaging with multiple speckle illumination\, Optica</p>\n<p>3 (1) \, 54-57 (2016).</p>\n<p>[5] E. Hojman et al. Photoacoustic imaging beyond the acoustic diffraction-limit with dynamic speckle illumination</p>\n<p> and sparse joint support recovery\, Optics Express 25 (5)\, 4875-4886 (201 6).</p>\n<p>[6] D. Doktofsky et al. Acousto optic imaging beyond the acous tic diffraction limit using speckle decorrelation\,</p>\n<p>Communications Physics 3 (1)\, 1-8 (2020).</p>\n<p>[7] M. Rosenfeld\, D. Doktofsky\, G. Weinberg\, Y. Li\, L. Tian\, O. Katz\, Acousto-optic Ptychography\,</p>\n< p>arXiv:2101.10099 (2021).</p>\n<p>[8] N.Shekel et al. Using fiber-bending -generated speckles for improved working distance and background rejection </p>\n<p>in lensless micro-endoscopy\, Optics Letters 45 (15)\, 4288-4291 (2020).</p> END:VEVENT END:VCALENDAR