227 citations · 2.2k across the 49 of their papers we have counts for
33 papers · 1 filter
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…
Enhanced Directional Quantum Emission by Tunable Topological Doubly-Resonant Cavities
Chenmin Xu, Chong Sheng, Shining Zhu +1
How to utilize topological microcavities to control quantum emission is one of the ongoing research topics in the optical community. In this work, we investigate the emission of qu…
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…
Demonstration of imaginary-mass particles by optical simulation in non-Hermitian systems
Wange Song, Shenglun Gao, Hanmeng Li +4
Unifying quantum mechanics and special relativity, the Dirac equation describes the behaviour of relativistic quantum particles, including imaginary-mass particles with faster-than…
High efficient metasurface quarter-wave plate with wavefront engineering
Chen Chen, Shenglun Gao, Xingjian Xiao +6
Metasurfaces with local phase tuning by subwavelength elements promise unprecedented possibilities for ultra-thin and multifunctional optical devices, in which geometric phase desi…
Gauge-induced Floquet topological states in photonic waveguides
Wange Song, Hanmeng Li, Shenglun Gao +4
Tremendous efforts have been devoted to the search for exotic topological states, which usually exist at an interface between lattices with differing topological invariants accordi…
Photonic flywheel in a monolithic fiber resonator
Kunpeng Jia, Xiaohan Wang, Dohyeon Kwon +11
We demonstrate the first compact photonic flywheel with sub-fs time jitter (averaging times up to 10 μs) at the quantum-noise limit of a monolithic fiber resonator. Such quantum-li…
Laguerre-Gaussian transform for rotating image processing
Dan Wei, Jiantao Ma, Tianxin Wang +8
Rotation is a common motional form in nature, existing from atoms and molecules, industrial turbines to astronomical objects. However, it still lacks an efficient and reliable meth…
Generations of high efficiency, high purity, and broadband Laguerre-Gaussian modes from a Janus optical parametric oscillator
Dunzhao Wei, Pengcheng Chen, Xiaopeng Hu +7
Laguerre-Gaussian (LG) modes, carrying orbital angular momentum of light, are critical for important applications such as high-capacity optical communications, super-resolution ima…
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…
Transformation optics based on metasurfaces
Chong Sheng, Hui Liu, Shining Zhu
Recently, new artificial material has been proposed to control an electromagnetic wave-metasurface, a two-dimensional metamaterial. Compared with a three-dimensional bulky metamate…
Mid-infrared optical frequency comb generation from a chi-2 optical superlattice box resonator
Kunpeng Jia, Xiaohan Wang, Xin Ni +8
Optical frequency combs (OFCs) at Mid-Infrared (MIR) wavelengths are essential for applications in precise spectroscopy, gas sensing and molecular fingerprinting, because of its re…
Generation of optical frequency comb in a chi-2 sheet micro optical parametric oscillator via cavity phase matching
Xinjie Lv, Xin Ni, Zhenda Xie +7
Chi-3 micro resonators have enabled compact and portable frequency comb generation, but require sophisticated dispersion control. Here we demonstrate an alternative approach using…
Controlling Surface Plasmons Through Covariant Transformation of the Spin-Dependent Geometric Phase Between Curved Metamaterials
Fan Zhong, Jensen Li, Hui Liu +1
General relativity uses curved space-time to describe accelerating frames. The movement of particles in different curved space-times can be regarded as equivalent physical processe…
Definite photon deflections of topological defects in metasurfaces and symmetry-breaking phase transitions with material loss
Chong Sheng, Hui Liu, Huanyang Chen +1
Combination of topology and general relativity can lead to some profound and farsighted predictions. It is well known that symmetry breaking of the Higgs vacuum field in the early…
Generating controllable Laguerre-Gaussian laser modes through intracavity spin-orbital angular momentum conversion of light
Dunzhao Wei, Yue Cheng, Rui Ni +4
The rapid developments in orbital-angular-momentum-carrying Laguerre-Gaussian (LG0 l) modes in recent years have facilitated progresses in optical communication, micromanipulation…
Light rays and waves on geodesic lenses
Lin Xu, Xiangyang Wang, Tomáš Tyc +4
Starting from well-known absolute instruments for perfect imaging, we introduce a type of rotational-symmetrical compact closed manifolds, namely geodesic lenses. We demonstrate th…
Reversible Wavefront Shaping Between Gaussian and Airy Beams By Mimicking Gravitational Field
Xiangyang Wang, Hui Liu, Chong Sheng +1
In this paper, we experimentally demonstrate reversible wavefront shaping through mimicking gravitational field. A gradient-index micro-structured optical waveguide with special re…
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…
Self-focusing and the Talbot effect in conformal transformation optics
Xiangyang Wang, Huanyang Chen, Hui Liu +3
Transformation optics (TO) has been used to propose various novel optical devices. With the help of metamaterials, several intriguing designs, such as invisibility cloaks, have bee…
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…