BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Turkey BEGIN:DAYLIGHT DTSTART:20380119T061407 TZOFFSETFROM:+0300 TZOFFSETTO:+0300 RRULE:FREQ=YEARLY;BYDAY=3TU;BYMONTH=1 TZNAME:+03 END:DAYLIGHT BEGIN:STANDARD DTSTART:20160907T000000 TZOFFSETFROM:+0300 TZOFFSETTO:+0300 RRULE:FREQ=YEARLY;BYDAY=1WE;BYMONTH=9 TZNAME:+03 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20180503T000000Z UID:EA79D5B9-2D04-4FAA-9060-C068A3BCE108 DTSTART;TZID=Turkey:20180330T133000 DTEND;TZID=Turkey:20180330T153000 DESCRIPTION:Speaker: Prof. Ali Serpengüzel\, Koç University\n\nTopic: "Si licon Microspheres and Meandering Waveguides for Fiber Optics and Integrat ed Photonics"\n\nLocation: Middle East Technical University\, Ankara\, Tur key\n\nAbstract: Spherical optical microcavities [1] are building blocks o f three dimensional photonics\, as linear optical microcavities are buildi ng blocks of one dimensional photonics [2]. Dielectric and semiconductor [ 3] based lightwave circuit elements are integrated into fiber optics and i ntegrated photonics. Specially\, silicon microspheres lead themselves to v arious lightwave circuit element applications such as channel dropping fil ters [4] tunable filters\, [5] and optical modulators [6] using optical fi ber half couplers manufactured from single mode optical fibers. On the int egrated optics side\, silicon on oxide (SOI)-distributed feedback (DFB) me andering waveguides\, as novel integrated optical elements\, can exhibit a variety of spectral responses such as coupled resonator induced transpare ncy filter\, Fano resonator\, hitless filter\, Lorentzian filter\, Rabi sp litter\, self coupled optical waveguide\, and tunable power divider [7]. W e focus on properties of silicon spherical resonators\, and SOI-DFB meande ring waveguides\, and their potential for practical applications in fiber optics and integrated photonics.\n\n[1] A. Serpengüzel\, S. Arnold\, and G. Griffel\, "Excitation of Resonances of Microspheres on an Optical Fiber \," Opt. Lett. 20\, 654-656 (1995).\n[2] A. Serpengüzel\, A. Aydınlı\, A. Bek\, and M. Güre\, "Visible photoluminescence from planar amorphous s ilicon nitride microcavities\," J. Opt. Soc. Am. B 15\, 2706-2711 (1998).\ n[3] N. M. Gasanly\, A. Serpengüzel\, O. Gürlü\, A. Aydınlı\, and I. Yılmaz\, "Dependence of the photoluminescence of Tl2InGaS4 layered crysta l on temperature and excitation intensity\," Solid State Commun. 108\, 525 -530 (1998).\n[4] Y.O. Yılmaz\, A. Demir\, A. Kurt\, and A. Serpengüzel\ , "Optical Channel Dropping with a Silicon Microsphere\," IEEE Photon. Tec hnol. Lett. 17\, 1662-1664 (2005).\n[5] A. Serpengüzel\, A. Kurt\, and U. K. Ayaz\, "Silicon microspheres for electronic and photonic integration\," Photon. Nanostructur.: Fundam. Appl. 6\, 179–182 (2008).\n[6] E. Yüce\ , O. Gürlü\, and A. Serpengüzel\, "Optical Modulation with Silicon Micr ospheres\," IEEE Photon. Technol. Lett. 21\, 1481-1483 (2009).\n[7] C. B. Dağ\, M. A. Anıl\, and A. Serpengüzel\, "Meandering Waveguide Distribut ed Feedback Lightwave Circuits\," J. Lightwave Technol\, 33\, 1691-1702 (2 015).\n\nBio: Ali Serpengüzel received his Ph.D. in Applied Physics from Yale University. At Yale\, he worked on stimulated Raman scattering from d roplets and sprays. Later on\, he joined Polytechnic University\, Micropar ticle Photophysics Laboratory for postdoctoral work\, where he performed t he first coupling experiment of solid microspheres to optical fibers. Afte rwards\, he joined Bilkent University as a faculty member\, where he conce ntrated his research on the optoelectronic properties of semiconductor mic rocavities. He is currently a Professor of Physics and the Director of the Koç University\, Microphotonics Research Laboratory\, Est. 2000. His cur rent research focuses on integrated photonics with optical many novel micr oresonator and waveguide structures. Other research interests include opti cal spectroscopy in complex media\, nanophotonics\, nonlinear optics\, and laser diagnostics. He is a fellow of SPIE\, a senior member of IEEE and O SA\, and a member of Sigma-Xi.\n\nSpeaker(s): Prof. Ali Serpenguzel\, \n\n Ankara\, Ankara\, Türkiye LOCATION:Ankara\, Ankara\, Türkiye ORGANIZER:ozergul@metu.edu.tr SEQUENCE:0 SUMMARY:IEEE AP/MTT/EMC/ED TURKEY CHAPTER SEMINAR SERIES -- SEMINAR 27 URL;VALUE=URI:https://events.vtools.ieee.org/m/171187 X-ALT-DESC:Description: <br /><p>Speaker: Prof. Ali Serpeng&uuml\;zel\, Ko& ccedil\; University</p>\n<p>Topic: "Silicon Microspheres and Meandering Wa veguides for Fiber Optics and Integrated Photonics"</p>\n<p>Location:&nbsp \;Middle East Technical University\, Ankara\, Turkey</p>\n<p>Abstract:&nbs p\;Spherical optical microcavities [1] are building blocks of three dimens ional photonics\, as linear optical microcavities are building blocks of o ne dimensional photonics [2]. Dielectric and semiconductor [3] based light wave circuit elements are integrated into fiber optics and integrated phot onics. Specially\, silicon microspheres lead themselves to various lightwa ve circuit element applications such as channel dropping filters [4] tunab le filters\, [5] and optical modulators [6] using optical fiber half coupl ers manufactured from single mode optical fibers. On the integrated optics side\, silicon on oxide (SOI)-distributed feedback (DFB) meandering waveg uides\, as novel integrated optical elements\, can exhibit a variety of sp ectral responses such as coupled resonator induced transparency filter\, F ano resonator\, hitless filter\, Lorentzian filter\, Rabi splitter\, self coupled optical waveguide\, and tunable power divider [7]. &nbsp\;We focus on properties of silicon spherical resonators\, and SOI-DFB meandering wa veguides\, and their potential for practical applications in fiber optics and integrated photonics.</p>\n<p>[1] A. Serpeng&uuml\;zel\, S. Arnold\, a nd G. Griffel\, "Excitation of Resonances of Microspheres on an Optical Fi ber\," Opt. Lett. 20\, 654-656 (1995).<br />[2] A. Serpeng&uuml\;zel\, A. Aydınlı\, A. Bek\, and M. G&uuml\;re\, "Visible photoluminescence from p lanar amorphous silicon nitride microcavities\," J. Opt. Soc. Am. B 15\, 2 706-2711 (1998).<br />[3] N. M. Gasanly\, A. Serpeng&uuml\;zel\, O. G&uuml \;rl&uuml\;\, A. Aydınlı\, and I. Yılmaz\, "Dependence of the photolumi nescence of Tl2InGaS4 layered crystal on temperature and excitation intens ity\," Solid State Commun. 108\, 525-530 (1998).<br />[4] Y.O. Yılmaz\, A . Demir\, A. Kurt\, and A. Serpeng&uuml\;zel\, "Optical Channel Dropping w ith a Silicon Microsphere\," IEEE Photon. Technol. Lett. 17\, 1662-1664 (2 005).<br />[5] A. Serpeng&uuml\;zel\, A. Kurt\, and U.K. Ayaz\, "Silicon m icrospheres for electronic and photonic integration\," Photon. Nanostructu r.: Fundam. Appl. 6\, 179&ndash\;182 (2008).<br />[6] E. Y&uuml\;ce\, O. G &uuml\;rl&uuml\;\, and A. Serpeng&uuml\;zel\, "Optical Modulation with Sil icon Microspheres\," IEEE Photon. Technol. Lett. 21\, 1481-1483 (2009).<br />[7] C. B. Dağ\, M. A. Anıl\, and A. Serpeng&uuml\;zel\, "Meandering W aveguide Distributed Feedback Lightwave Circuits\," J. Lightwave Technol\, 33\, 1691-1702 (2015).</p>\n<p>&nbsp\;</p>\n<p>Bio:&nbsp\;Ali Serpeng&uum l\;zel received his Ph.D. in Applied Physics from Yale University. At Yale \, he worked on stimulated Raman scattering from droplets and sprays. Late r on\, he joined Polytechnic University\, Microparticle Photophysics Labor atory for postdoctoral work\, where he performed the first coupling experi ment of solid microspheres to optical fibers. Afterwards\, he joined Bilke nt University as a faculty member\, where he concentrated his research on the optoelectronic properties of semiconductor microcavities. He is curren tly a Professor of Physics and the Director of the Ko&ccedil\; University\ , Microphotonics Research Laboratory\, Est. 2000. His current research foc uses on integrated photonics with optical many novel microresonator and wa veguide structures. Other research interests include optical spectroscopy in complex media\, nanophotonics\, nonlinear optics\, and laser diagnostic s. He is a fellow of SPIE\, a senior member of IEEE and OSA\, and a member of Sigma-Xi.</p> END:VEVENT END:VCALENDAR