BEGIN:VCALENDAR VERSION:2.0 X-WR-CALNAME:EventsCalendar PRODID:-//hacksw/handcal//NONSGML v1.0//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York LAST-MODIFIED:20240422T053451Z TZURL:https://www.tzurl.org/zoneinfo-outlook/America/New_York X-LIC-LOCATION:America/New_York BEGIN:DAYLIGHT TZNAME:EDT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 DTSTART:19700308T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:19701101T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT CATEGORIES:College of Engineering,Lectures and Seminars DESCRIPTION:Topic:        “III-V Lasers and Their Integrating with Silicon Photonics for LiDAR Applications”  Speaker: Dr. Elif DemirbasAs sistant Professor, Physics, Photonics and Optical EngineeringBridgewater S tate University  Abstract: Semiconductor lasers or laser diodes are essen tial in many applications where compact, coherent, and efficient light sou rces are needed, such as in telecom, datacom, sensing, and especially LiDA R systems. A major benefit to these laser diodes is the ability to integra te them with metasurfaces or photonic integrated circuit (PIC) components through hybrid or heterogeneous integration. III-V materials such as Galli um Arsenide (GaAs) and Indium Phosphide (InP) are popular material choices for these laser diodes due to their direct bandgaps and high efficiency. I will present optoelectronic characterization of several laser diodes, an d a method for using silver epoxy to bond these laser diodes to silicon di es and compare behavior before and after bonding. Additionally, I will tal k about the design of the metasurfaces and their beam deflection propertie s for the solid-state LiDAR systems.  Biography: Dr. Demirbas received he r BS in physics from Bogazici University, Istanbul, Turkey where she also earned an MS degree in Physics with a thesis title of “Laser Assisted Gr owth of Silicon Nanostructures”. She then received an MS degree in Physi cs from Brandeis University, with a thesis titled of “Photo-Activated La ngmuir Monolayers as Active Polar Fluids”. She later joined Photonics Ce nter in Physics & Applied Physics Department in University of Massachusett s, Lowell and she earned her PhD degree with the thesis of “Optimization of III-V Semiconductor Lasers and Their Integration Process for Integrate d Photonics and Sensing Application.”   She joined Bridgewater State Un iversity in 2019 as an Assistant Professor and has been developing the Pho tonics and Optics Engineering BS Program and teaching the PHOE courses and labs. In her semiconductor laser characterization research group, she is focusing on III-V Semiconductor Laser Characterization, Integration of III -V Lasers with Silicon Photonics Chips, Silicon Phase Arrays, Light Manipu lation with Metasurfaces, and MEMS LiDAR. She has been active member of Op tica and IEEE. The Seminars is open to the public free of charge. For furt her information, please contact Dr. Yifei Li via email at yifei.li@umassd. edu.\nEvent page: /events/cms/ece-seminar-topic-iii- v-lasers-and-their-integrating-with-silicon-photonics-for-lidar-applicatio ns.php X-ALT-DESC;FMTTYPE=text/html:

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Topic:       
“II I-V Lasers and Their Integrating with Silicon Photonics for LiDAR Applicat ions” 

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Speaker:
Dr. Elif Demirbas
Assistant Professo r\, Physics\, Photonics and Optical Engineering
Bridgewater State Uni versity 

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Abstract:

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Semiconductor lasers or laser diodes a re essential in many applications where compact\, coherent\, and efficient light sources are needed\, such as in telecom\, datacom\, sensing\, and e specially LiDAR systems. A major benefit to these laser diodes is the abil ity to integrate them with metasurfaces or photonic integrated circuit (PI C) components through hybrid or heterogeneous integration. III-V materials such as Gallium Arsenide (GaAs) and Indium Phosphide (InP) are popular ma terial choices for these laser diodes due to their direct bandgaps and hig h efficiency. I will present optoelectronic characterization of several la ser diodes\, and a method for using silver epoxy to bond these laser diode s to silicon dies and compare behavior before and after bonding. Additiona lly\, I will talk about the design of the metasurfaces and their beam defl ection properties for the solid-state LiDAR systems. 

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Biography: Dr. Demirbas received her BS in physics from Bogazici University\, Istanbu l\, Turkey where she also earned an MS degree in Physics with a thesis tit le of “Laser Assisted Growth of Silicon Nanostructures”. She then rece ived an MS degree in Physics from Brandeis University\, with a thesis titl ed of “Photo-Activated Langmuir Monolayers as Active Polar Fluids”. Sh e later joined Photonics Center in Physics & Applied Physics Department in University of logo\, Lowell and she earned her PhD degree with t he thesis of “Optimization of III-V Semiconductor Lasers and Their Integ ration Process for Integrated Photonics and Sensing Application.”  

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She joined Bridgewater State University in 2019 as an Assistant Profe ssor and has been developing the Photonics and Optics Engineering BS Progr am and teaching the PHOE courses and labs. In her semiconductor laser char acterization research group\, she is focusing on III-V Semiconductor Laser Characterization\, Integration of III-V Lasers with Silicon Photonics Chi ps\, Silicon Phase Arrays\, Light Manipulation with Metasurfaces\, and MEM S LiDAR. She has been active member of Optica and IEEE.

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The Semina rs is open to the public free of charge.

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For further information\, please contact Dr. Yifei Li via email at yifei.li@umassd.edu.

Event page:

DTSTAMP:20260427T083810 DTSTART;TZID=America/New_York:20260424T130000 DTEND;TZID=America/New_York:20260424T140000 LOCATION:Lester W. Cory Conference Room, Science & Engineering Building (SENG), Room 213A SUMMARY;LANGUAGE=en-us:ECE Seminar Topic: III-V Lasers and Their Integratin g with Silicon Photonics for LiDAR Applications UID:ee737c920f9c1bee380927584f4daed1@www.umassd.edu END:VEVENT END:VCALENDAR