报告题目：From microphotonics to nanophotonics: photonic crystal fibers for mid-IR applications and nanostructure devices
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.