59 citations · 204 across the 16 of their papers we have counts for
16 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…
High-responsivity MoS hot-electron telecom-band photodetector integrated with microring resonator
Qiao Zhang, Yingke Ji, Siqi Hu +9
We report a high-responsive hot-electron photodetector based on the integration of an Au-MoS junction with a silicon nitride microring resonator (MRR) for detecting telecom-ban…
High-efficiency second-harmonic and sum-frequency generation in a silicon nitride microring integrated with few-layer GaSe
Binbin Wang, Yafei Ji, Linpeng Gu +3
Silicon nitride (SiN) photonics platform has attributes of ultra-low linear and nonlinear propagation losses and CMOS-compatible fabrication process, promising large-scale multifun…
Exciting Magnetic Dipole Mode of Split Ring Plasmonic Nano Resonator by Photonic Crystal Nanocavity
Yingke Ji, Binbin Wang, Liang Fang +3
On chip exciting electric modes in individual plasmonic nanostructures are realized widely; nevertheless, the excitation of their magnetic counterparts is seldom reported. Here, we…
Fano resonance from a one-dimensional topological photonic crystal
Linpeng Gu, Binbin Wang, Qingchen Yuan +4
An ultra-compact one-dimensional topological photonic crystal (1D-TPC) is designed in a single mode silicon bus-waveguide to generate Fano resonance lineshape. The Fano resonance c…
Giant Enhancement of Nonlinear Harmonic Generation in a Silicon Topological Photonic Crystal Nanocavity Chain
Qingchen Yuan, Linpeng Gu, Liang Fang +3
Strongly enhanced third-harmonic generation (THG) by the topological localization of an edge mode in a Su-Schrieffer-Heeger (SSH) chain of silicon photonic crystal nanocavities is…
A topological photonic ring-resonator for on-chip channel filters
Linpeng Gu, Qingchen Yuan, Qiang Zhao +5
A topologically protected ring-resonator formed in valley photonic crystals is proposed and fabricated on a silicon slab. The unidirectional transmission and robustness against str…
Fano resonance lineshapes in a waveguide-microring structure enabled by an air-hole
Linpeng Gu, Liang Fang, Hanlin Fang +5
We propose and demonstrate, by simply inserting an air-hole in the waveguide side-coupling with a microring resonator (MRR), the transmission spectrum presents Fano lineshapes at a…
Second harmonic and sum-frequency generations from a silicon metasurface integrated with a two-dimensional material
Qingchen Yuan, Liang Fang, Hanlin Fang +5
Silicon-based nonlinear metasurfaces were implemented only with third-order nonlinearity due to the crystal centrosymmetry and the efficiencies are considerably low, which hinders…
A compact structure for realizing Lorentzian, Fano and EIT resonance lineshapes in a microring resonator
Linpeng Gu, Hanlin Fang, Juntao Li +4
Microring resonators, as a fundamental building block of photonic integrated circuits, have been well developed into numerous functional devices, whose performances are strongly de…
Multiple optical frequency-conversions in few-layer GaSe assisted by a photonic crystal cavity
Liang Fang, Qingchen Yuan, Hanlin Fang +6
While two-dimensional (2D) materials have intriguing second-order nonlinearities with ultrahigh coefficient and electrical tunability, their atomic layer thicknesses hinder explora…
Low-power continuous-wave second harmonic generation in semiconductor nanowires
Qingchen Yuan, Liang Fang, He Yang +5
Semiconductor nanowires (NWs) are promising for realizing various on-chip nonlinear optical devices, due to their nanoscale lateral confinement and strong light-matter interaction.…
Cylindrical vector resonant modes achieved in planar photonic crystal cavities with enlarged air-holes
Kang Chang, Liang Fang, Chenyang Zhao +2
We reveal a triangular-lattice planar photonic crystal supports Bloch modes with radially and azimuthally symmetric electric field distributions at the top band-edge of the first p…
High performance graphene oxide-based humidity sensor integrated on a photonic crystal cavity
Xuetao Gan, Chenyang Zhao, Qingchen Yuan +5
We report a high performance relative humidity (RH) microsensor by coating a few-layer graphene oxide (GO) flake over a photonic crystal (PC) cavity. Since the GO layer has a high…