Dr. Weidong Zhou, Photonics Center, University of Texas at Arlington (UTA)
Scaling towards high-power single-mode PCSELs and PCSEL Arrays
(Photonic Crystal Surface-Emitting Lasers)
Abstract
When it was first invented 60 years ago, the laser was described as “A solution looking for a problem”. Few predicted that lasers would ultimately support multi-trillion-dollar photonics-enabled markets today. Based on the Fano resonances in photonic crystal cavities and transfer printing heterogeneous integration platform, we have been working on next-generation semiconductor photonic crystal lasers and related heterogeneously integrated nanophotonic and optoelectronic devices for chip-scale integrated system applications. In this talk, I will first describe how hybrid and monolithic photonic crystal lasers can address the grand challenges of energy-efficient on-chip lasers, followed by presentations on scaling challenges in photonic crystal surface-emitting lasers (PCSELs) with high-power, high brightness, and high speed. In the second part, I will discuss heterogeneously integrated photonic crystal optoelectronic devices based on the micro transfer printing process, including high-speed photonic crystal spatial light modulators and monolayer graphene total absorption in critically coupled photonic crystal cavities and designs toward high speed reconfigurable intelligent surfaces.
Weidong Zhou is a Distinguished University Professor and Janet and Mike Greene Professor at the University of Texas at Arlington (UTA). He obtained BS and ME degrees from Tsinghua University, China, and a Ph.D. degree from University of Michigan, Ann Arbor. After graduation, he spent three years at CIENA Corporation working on optical transceiver modules and subsystems for optical communication systems. Prof. Zhou and his group have made significant contributions to semiconductor heterogeneously integrated photonic crystal membrane photonics, especially photonic crystal lasers, modulators, and sensors, for integrated silicon photonics and flexible optoelectronics. He has published over 400 journal papers and conference presentations, including many papers published in high-impact journals such as Nature Photonics, Nature Communications, Nature Biomedical Engineering, etc. He has also delivered over 100 invited conference talks. Dr. Zhou is a fellow of SPIE, a fellow of Optica, a senior member of IEEE, and a member of APS and AAAS. He is the Director of UTA Photonics Center.
This is an in-person seminar. If you opt to join via zoom use Meeting ID 851 2782 3775, Passcode 563639