192 citations · 1.3k across the 26 of their papers we have counts for
14 papers · 1 filter
Efficient high-quality photon pair generation in modal phase-matched thin-film lithium niobate micro-ring resonators
Tingting Chen, Feihong Xue, Ryan Hogan +9
Efficient generation of high-quality photon pairs is essential for modern quantum technologies. Micro-ring resonator is an ideal platform for studying on-chip photon sources due to…
Topological Degeneracy Induced by Twisting
Han Peng, Qiang Wang, Meng Xiao +3
In recent years, twisting has emerged as a new degree of freedom that plays an increasingly important role in Bloch bands of various physical systems. However, there is currently a…
Multiple symmetry protected BIC lines in two dimensional synthetic parameter space
Fengyuan Zhang, Qiongqiong Chu, Qiang Wang +2
Bound states in the continuum (BICs) have attracted significant interest in recent years due to their unique optical properties, such as infinite quality factor and wave localizati…
Non-Hermitian Photonic Lattices: tutorial
Qiang Wang, Y. D. Chong
Non-Hermitian photonic lattices combine the peculiar consequences of energy non-conservation with the physics of bandstructures, giving rise to a variety of exotic properties not f…
Amplification of quantum signals by the non-Hermitian skin effect
Qiang Wang, Changyan Zhu, You Wang +2
The non-Hermitian skin effect (NHSE) is a phenomenon whereby certain non-Hermitian lattice Hamiltonians, particularly those with nonreciprocal couplings, can host an extensive numb…
Double-bowl State in photonic Dirac nodal line semimetal
Mengying Hu, Ye Zhang, Xi Jiang +5
The past decade has seen a proliferation of topological materials for both insulators and semimetals in electronic systems and classical waves. Topological semimetals exhibit topol…
Generation and Tunability of Supermodes in Tamm Plasmon Topological Superlattices
Tong Qiao, Mengying Hu, Xi Jiang +3
In this study, we propose and experimentally demonstrate a novel kind of Tamm plasmon topological superlattice (TTS) by engineering Tamm photonic crystals (TPCs) belonging to a dif…
Probing rotated Weyl physics on nonlinear lithium niobate-on-insulator chips
Zhi-Wei Yan, Qiang Wang, Meng Xiao +3
Topological photonics, featured by stable topological edge states resistant to perturbations, has been utilized to design robust integrated devices. Here, we present a study explor…
Exceptional Cones in 4D Parameter Space
Qiang Wang, Kun Ding, Hui Liu +2
The notion of synthetic dimensions has expanded the realm of topological physics to four dimensional (4D) space lately. In this work, non-Hermiticity is used as a synthetic paramet…
Realization of Photonic Charge-2 Dirac Point by Engineering Super-modes in Topological Superlattices
Mengying Hu, Kun Ding, Tong Qiao +4
Quite recently a novel variety of unconventional fourfold linear band degeneracy points has been discovered in certain condensed-matter systems. Contrary to the standard 3-D Dirac…
Controlling Thermal Emission by Parity-symmetric Fano Resonance of Optical Absorbers in Metasurfaces
Xia Zhang, Zhen-guo Zhang, Qiang Wang +2
In this study, we designed a metasurface based on Al/SiN/Al nano-sandwich optical absorbers. Parity-symmetric dark magnetic resonance modes, anti-symmetric bright magnetic resonanc…
Optical interface states protected by synthetic Weyl points
Qiang Wang, Meng Xiao, Hui Liu +2
Weyl fermions have not been found in nature as elementary particles, but they emerge as nodal points in the band structure of electronic and classical wave crystals. Novel phenomen…
Synthetic Weyl points in generalized parameter space and their topological properties
Qiang Wang, Meng Xiao, Hui Liu +3
Weyl fermions1 do not appear in nature as elementary particles, but they are now found to exist as nodal points in the band structure of electronic and classical wave crystals. Nov…
Measurement of the Zak phase of photonic bands through the interface states of metasurface/photonic crystal
Qiang Wang, Meng Xiao, Hui Liu +2
Zak phase labels the topological property of one-dimensional Bloch Bands. Here we propose a scheme and experimentally measure the Zak phase in a photonic system. The Zak phase of a…