报告题目:From microphotonics to nanophotonics: photonic crystal fibers for mid-IR applications and nanostructure devices
报告人：Jonathan Hu
报告时间：下午3:30
报告地点：理A110
讲座时间：2016.12.19下午3:30
讲座地点：理A110
Title: From microphotonics to nanophotonics: photonic crystal fibers for mid-IR applications and nanostructure devices
Jonathan Hu is an Assistant Professor in the Department of Electrical and Computer Engineering at Baylor University. He received his Ph.D. degree from University of Maryland, Baltimore County. Before he joined Baylor University in August 2011, he spent two years as a Research Associate at Princeton University. His research interests include mid-IR supercontinuum generation, chalcogenide glass fibers, photonic crystal fibers, negative curvature fibers, nonlinear optics, nanophotonics, surface plasmons, and 2D materials. In 2015, he served as a topic co-chair for Mid Infrared Photonics (MIP) in the IEEE Summer Topical Meetings. He received Baylor Young Investigator Development Award in 2015.
Photonic systems become more and more complicated in recent years. The first half of the talk will focus on microphotonic research for chalcogenide photonic crystal fibers. A procedure for maximizing the bandwidth of mid-IR supercontinuum generation in chalcogenide fibers and the physics behind this procedure will be presented. Recent advances in the negative curvature fibers enable a large range of applications, including mid-IR fiber lasers, micromachining, and surgery. Different designs of negative curvature fibers will be presented to obtain low loss transmission with a broad bandwidth and a low power ratio in the glass. The second half of the talk will focus on nanophotonic research, more specifically, two-dimensional monolayer materials. Nanophotonic devices may make electronic-photonic integrated circuits feasible in the near future. Monolayer materials will become the material of choice for electronic-photonic integrated circuits. This presentation will show graphene flakes for a display application and WS2 monolayers to excite surface plasmons of Ag nanowires.