4 papers
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…
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…
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…
Compact on-chip power splitter based on topological photonic crystal
Puhui Zhang, Jiacheng Zhang, Linpeng Gu +4
We propose and demonstrate an on-chip 1*N power splitter based on topological photonic crystal (TPC) on a monolithic silicon photonic platform. Benefiting from the valley-locked pr…