BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20261101T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260929T184831Z UID:86D8C829-00FB-4560-8034-7BDBC37DCC36 DTSTART;TZID=America/New_York:20261021T190000 DTEND;TZID=America/New_York:20261021T200000 DESCRIPTION:About this event:\n\nQuantum communication offers new ways to p rotect and transmit information\; however\, sending quantum states through free space presents a challenge: atmospheric turbulence can distort the s hape of light as it travels\, making it difficult to reliably recover the information encoded in the light.\n\nIn this talk\, the speaker will prese nt an approach that uses nonlinear optics to automatically correct these d istortions. The key idea is to use a process called stimulated parametric down-conversion to create a phase-conjugated copy of the distorted light. In this way\, the optical system can compensate for the effects of turbule nce without requiring a conventional adaptive-optics system or prior knowl edge of the atmospheric conditions.\n\nThe speaker will discuss how this a pproach can be used to improve the transmission of information encoded in different spatial patterns of light\, and present theoretical\, numerical\ , and experimental results demonstrating its ability to mitigate turbulenc e. This work explores a new route toward more robust free-space quantum co mmunication and could help make high-dimensional quantum communication mor e practical in real-world atmospheric environments\n\nAaron Cardoso\n\nAar on Cardoso is a physicist and PhD student in Physics at the University of Ottawa\, where he works in Robert Boyd’s group on nonlinear and quantum optics. He received his Bachelor's degree in Physics from the Metropolitan Autonomous University in Mexico City and his Master's degree in Physics f rom the Center for Research in Optics in Guanajuato\, Mexico.\n\nHis resea rch focuses on structured light and quantum optics\, with particular inter ests in orbital angular momentum\, high-dimensional quantum communication\ , quantum key distribution\, and nonlinear optical processes such as spont aneous and stimulated parametric down-conversion. His current work explore s nonlinear optical methods for manipulating and protecting structured qua ntum states of light\, with the goal of developing more robust and scalabl e free-space quantum communication technologies.\n\nCo-sponsored by: IET\n \nSpeaker(s): Aaron\n\nRoom: Courtside Room A by East Wing Entrance \, Bld g: RA Centre\, 2451 Riverside Drive \, Ottawa\, Ontario\, Canada\, K1H 7X7 LOCATION:Room: Courtside Room A by East Wing Entrance \, Bldg: RA Centre\, 2451 Riverside Drive \, Ottawa\, Ontario\, Canada\, K1H 7X7 ORGANIZER:bjoshi@ieee.org SEQUENCE:21 SUMMARY:All Optical Processes for Free-Space Quantum Communications URL;VALUE=URI:https://events.vtools.ieee.org/m/580108 X-ALT-DESC:Description: <br /><p class="MsoNormal"><strong><span style="fon t-size: 10.0pt\; mso-fareast-font-family: 'Times New Roman'\; mso-bidi-fon t-family: Calibri\; mso-bidi-theme-font: minor-latin\; color: #333333\; ms o-font-kerning: 0pt\; mso-ligatures: none\;">About this event:</span></str ong></p>\n<p class="MsoNormal" style="mso-outline-level: 3\; vertical-alig n: baseline\; margin: 15.0pt 0cm 15.0pt 0cm\;"><span style="font-size: 10. 0pt\; mso-fareast-font-family: 'Times New Roman'\; mso-bidi-font-family: C alibri\; mso-bidi-theme-font: minor-latin\; mso-font-kerning: 0pt\; mso-li gatures: none\;">Quantum communication offers new ways to protect and tran smit information\; however\, sending quantum states through free space pre sents a challenge: atmospheric turbulence can distort the shape of light a s it travels\, making it difficult to reliably recover the information enc oded in the light.</span></p>\n<p class="MsoNormal" style="mso-outline-lev el: 3\; vertical-align: baseline\; margin: 15.0pt 0cm 15.0pt 0cm\;"><span style="font-size: 10.0pt\; mso-fareast-font-family: 'Times New Roman'\; ms o-bidi-font-family: Calibri\; mso-bidi-theme-font: minor-latin\; mso-font- kerning: 0pt\; mso-ligatures: none\;">In this talk\, the speaker will pres ent an approach that uses nonlinear optics to automatically correct these distortions. The key idea is to use a process called stimulated parametric down-conversion to create a phase-conjugated copy of the distorted light. In this way\, the optical system can compensate for the effects of turbul ence without requiring a conventional adaptive-optics system or prior know ledge of the atmospheric conditions.</span></p>\n<p class="MsoNormal" styl e="mso-outline-level: 3\; vertical-align: baseline\; margin: 15.0pt 0cm 15 .0pt 0cm\;"><span style="font-size: 10.0pt\; mso-fareast-font-family: 'Tim es New Roman'\; mso-bidi-font-family: Calibri\; mso-bidi-theme-font: minor -latin\; mso-font-kerning: 0pt\; mso-ligatures: none\;">The speaker will d iscuss how this approach can be used to improve the transmission of inform ation encoded in different spatial patterns of light\, and present theoret ical\, numerical\, and experimental results demonstrating its ability to m itigate turbulence. This work explores a new route toward more robust free -space quantum communication and could help make high-dimensional quantum communication more practical in real-world atmospheric environments</span> </p>\n<p class="MsoNormal" style="mso-outline-level: 3\; vertical-align: b aseline\; margin: 15.0pt 0cm 15.0pt 0cm\;">&nbsp\;</p>\n<p class="MsoNorma l" style="mso-outline-level: 4\; vertical-align: baseline\;"><strong><span style="font-size: 10.0pt\; mso-fareast-font-family: 'Times New Roman'\; m so-bidi-font-family: Calibri\; mso-bidi-theme-font: minor-latin\; color: b lack\; mso-font-kerning: 0pt\; mso-ligatures: none\;">Aaron Cardoso</span> </strong></p>\n<p class="MsoNormal" style="mso-outline-level: 4\; vertical -align: baseline\;"><strong><span style="font-size: 10.0pt\; mso-fareast-f ont-family: 'Times New Roman'\; mso-bidi-font-family: Calibri\; mso-bidi-t heme-font: minor-latin\; color: black\; mso-font-kerning: 0pt\; mso-ligatu res: none\;">&nbsp\;</span></strong></p>\n<p class="MsoNormal"><span style ="font-size: 10.0pt\; mso-fareast-font-family: 'Times New Roman'\; mso-bid i-font-family: Calibri\; mso-bidi-theme-font: minor-latin\; mso-font-kerni ng: 0pt\; mso-ligatures: none\;">Aaron Cardoso is a physicist and PhD stud ent in Physics at the University of Ottawa\, where he works in Robert Boyd &rsquo\;s group on nonlinear and quantum optics. He received his Bachelor' s degree in Physics from the Metropolitan Autonomous University in Mexico City and his Master's degree in Physics from the Center for Research in Op tics in Guanajuato\, Mexico.</span></p>\n<p class="MsoNormal"><span style= "font-size: 10.0pt\; mso-fareast-font-family: 'Times New Roman'\; mso-bidi -font-family: Calibri\; mso-bidi-theme-font: minor-latin\; mso-font-kernin g: 0pt\; mso-ligatures: none\;">His research focuses on structured light a nd quantum optics\, with particular interests in orbital angular momentum\ , high-dimensional quantum communication\, quantum key distribution\, and nonlinear optical processes such as spontaneous and stimulated parametric down-conversion. His current work explores nonlinear optical methods for m anipulating and protecting structured quantum states of light\, with the g oal of developing more robust and scalable free-space quantum communicatio n technologies.</span></p>\n<p class="MsoNormal" style="mso-outline-level: 3\; vertical-align: baseline\; margin: 15.0pt 0cm 15.0pt 0cm\;">&nbsp\;</ p> END:VEVENT END:VCALENDAR