3 papers
physics.optics2025
On-chip quadratically nonlinear photodetector
Yu Zhang, Xiaoqing Chen, Mingwen Zhang +5
Involving deterministically nonlinear photoresponse in on-chip photodetector is intriguing to develop sophisticated functions in photonic integrated circuits, such as in-sensor com…
physics.optics2024
Microcavity induced by few-layer GaSe crystal on silicon photonic crystal waveguide for efficient optical frequency conversion
Xiaoqing Chen, Yanyan Zhang, Yingke Ji +8
We demonstrate the post-induction of high-quality microcavity on silicon photonic crystal (PC) waveguide by integrating few-layer GaSe crystal, which promises highly efficient on-c…
physics.optics2024
Nonlinear photodetector based on InSe p-n homojunction for improving spatial imaging resolution
Yu Zhang, Xiaoqing Chen, Mingwen Zhang +7
We demonstrate an efficient nonlinear photodetector (NLPD) with quadratic response based on a few-layer InSe p-n homojunction, which is beneficial from the strong second harmonic g…