Xiaohui Ling
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View article: Photonic spin-Hall effect at the strong gain points in parity-time symmetric bilayer systems
Photonic spin-Hall effect at the strong gain points in parity-time symmetric bilayer systems Open
View article: The application value of facial expression analysis system in violence risk assessment of patients with mental disorders
The application value of facial expression analysis system in violence risk assessment of patients with mental disorders Open
Introduction Patients with mental disorders often engage in extreme and unpredictable violent behaviors that seriously endanger the public security and stability of the society. Violence risk is commonly assessed by subjective judgement, w…
View article: Effectively suppressed reflected photonic spin Hall effect
Effectively suppressed reflected photonic spin Hall effect Open
The photonic spin Hall effect can engender transverse spatial and angular displacements in both transmission and reflection, with significant applications in optical imaging, edge detection, and the development of spin-based nanophotonic d…
View article: Development of Highly Stable Ac/Sps Composite Materials for the Removal of Reactive Red Dye Across a Wide Ph Range
Development of Highly Stable Ac/Sps Composite Materials for the Removal of Reactive Red Dye Across a Wide Ph Range Open
View article: Two Novel Synergistic Systems For Efficient Depassivation in Micro-Electrolysis: Design and Mechanism
Two Novel Synergistic Systems For Efficient Depassivation in Micro-Electrolysis: Design and Mechanism Open
View article: Performance and Mechanism of Enhanced Nitrogen Removal by Fe/Cu/C Micro-Electrolysis Coupled with Salt-Tolerant Microorganisms in Saline-Alkali Constructed Wetlands
Performance and Mechanism of Enhanced Nitrogen Removal by Fe/Cu/C Micro-Electrolysis Coupled with Salt-Tolerant Microorganisms in Saline-Alkali Constructed Wetlands Open
View article: High performance transmission-type meta-surface for generating terahertz focused vortex beams
High performance transmission-type meta-surface for generating terahertz focused vortex beams Open
Conventional optical devices that generate focused vortex beams (FVBs) often suffer from bulky size and integration challenges with other optical components. Here, we propose a novel approach using a transmission-type Pancharatnam-Berry (P…
View article: Exotic spin-Hall effect in non-Hermitian optical systems
Exotic spin-Hall effect in non-Hermitian optical systems Open
We systematically explore the origin and evolution of the exceptional points (EP) when a light beam is scattered by a parity-time (PT)-symmetric system using a scattering matrix approach and a full-wave theory. It is demonstrated that the …
View article: Spin-momentum properties of the spin–orbit interactions of light at optical interfaces
Spin-momentum properties of the spin–orbit interactions of light at optical interfaces Open
The spin–orbit interaction (SOI) of light manifests as the generation of spin-dependent vortex beams when a spin-polarized beam strikes an optical interface normally. However, the spin-momentum nature of this SOI process remains elusive, w…
View article: Chirality-enabled topological phase transitions in parity-time symmetric systems
Chirality-enabled topological phase transitions in parity-time symmetric systems Open
Photonic spin Hall effect (PSHE) in chiral PT-symmetric systems exhibits many exotic features, but the underlying physical mechanism has not been well elucidated. Here, through rigorous calculations based on full-wave theory, we reveal the…
View article: Nonlinear evolution of modulational instability under the interaction of Kerr nonlinearity with pure higher, even-order dispersion
Nonlinear evolution of modulational instability under the interaction of Kerr nonlinearity with pure higher, even-order dispersion Open
We investigate the nonlinear evolutions of modulation instability (MI) under the interaction of Kerr nonlinearity with pure higher, even-order dispersion (HEOD) by using the truncating method of three-wave mixing. For any HEOD, we find the…
View article: Role of beam parameters in the spin-orbit interactions of light
Role of beam parameters in the spin-orbit interactions of light Open
We employ a full-wave theory to systematically investigate two types of spin-orbit interactions and their topological phase transitions for various light beams (e.g., Laguerre-Gaussian, Bessel, and Bessel-Gaussian beams) at optical interfa…
View article: Reconfigurable High-Efficiency metadevice using Kirigami-Inspired phase gradient metasurfaces
Reconfigurable High-Efficiency metadevice using Kirigami-Inspired phase gradient metasurfaces Open
Kirigami-inspired metasurface has attracted great attention in electromagnetic (EM) wave manipulations, due to its unprecedented and tailorable structural transformations via mechanical approaches. However, it is still challenging for wave…
View article: Symmetry-breaking enabled topological phase transitions in spin-orbit optics
Symmetry-breaking enabled topological phase transitions in spin-orbit optics Open
The topological phase transitions (TPT) of light refers to a topological evolution from one type of spin-orbit interaction to another, which has been recently found in beam scattering at optical interfaces and propagation in uniaxial cryst…
View article: Enhancement of the conversion efficiency of optical spin-orbit interactions in PT symmetric systems
Enhancement of the conversion efficiency of optical spin-orbit interactions in PT symmetric systems Open
The optical spin-orbit interaction (SOI) caused by momentum-dependent Pancharatnam–Berry phase (PB) provides new opportunities in the development of spin-optical devices, but the relatively low conversion efficiency limits its application.…
View article: Gate-tuned graphene meta-devices for dynamically controlling terahertz wavefronts
Gate-tuned graphene meta-devices for dynamically controlling terahertz wavefronts Open
Dynamical controls on terahertz (THz) wavefronts are crucial for many applications, but available mechanism requests tunable elements with sub-micrometer sizes that are difficult to find in the THz regime. Here, different from the local-tu…
View article: Surface Engineering of Full-Spectrum Sunlight-Driven Cds/Nayf4: Yb, Er for Boosting Photocatalytic Co2 Reduction Reaction
Surface Engineering of Full-Spectrum Sunlight-Driven Cds/Nayf4: Yb, Er for Boosting Photocatalytic Co2 Reduction Reaction Open
View article: An exact soliton-like solution of cubic-quintic nonlinear Schrödinger equation with pure fourth order dispersion
An exact soliton-like solution of cubic-quintic nonlinear Schrödinger equation with pure fourth order dispersion Open
We find analytically an exact soliton-like solution of cubic-quintic nonlinear Schrödinger equation (CQNLSE) with pure normal fourth-order dispersion (FOD). This exact solitary solution is “fixed-parameter” solitary wave, whose waveform is…
View article: Dynamically controlling terahertz wavefronts with cascaded metasurfaces
Dynamically controlling terahertz wavefronts with cascaded metasurfaces Open
Dynamically controlling terahertz (THz) wavefronts in a designable fashion is highly desired in practice. However, available methods working at microwave frequencies do not work well in the THz regime due to lacking suitable tunable elemen…
View article: Deterministic Approach to Achieve Full-Polarization Cloak
Deterministic Approach to Achieve Full-Polarization Cloak Open
Achieving full-polarization ( ) invisibility on an arbitrary three-dimensional (3D) platform is a long-held knotty issue yet extremely promising in real-world stealth applications. However, state-of-the-art invisibility cloaks typically …
View article: Spin-encoded Wavelength-space Multitasking Janus Metasurfaces 
Spin-encoded Wavelength-space Multitasking Janus Metasurfaces Open
The fruitful progress toward light manipulation in reflective ( R ) or transmissive ( T ) geometry (half-space) has facilitated strong aspiration to achieving full-space electromagnetic wave control in both R and T channels. Although it pr…
View article: Vortex generation in the spin-orbit interaction of a light beam propagating inside a uniaxial medium: origin and efficiency
Vortex generation in the spin-orbit interaction of a light beam propagating inside a uniaxial medium: origin and efficiency Open
It has been known that an optical vortex with a topological charge ±2 can be generated as a circularly polarized (CP) light beam propagates in a bulk uniaxial crystal, but its physical origin remains obscure which also hinders its practica…
View article: Spin-orbit interaction of a light beam under normal incidence at a sharp interface and its enhancement
Spin-orbit interaction of a light beam under normal incidence at a sharp interface and its enhancement Open
The spin-orbit interaction (SOI) of light refers to the mutual conversion and coupling between the spin angular momentum and orbital angular momentum. It is a fundamental effect in optics, and has been widely found in many basic optical pr…
View article: Multiplexed Metasurfaces: Wavevector and Frequency Multiplexing Performed by a Spin‐Decoupled Multichannel Metasurface (Adv. Mater. Technol. 1/2020)
Multiplexed Metasurfaces: Wavevector and Frequency Multiplexing Performed by a Spin‐Decoupled Multichannel Metasurface (Adv. Mater. Technol. 1/2020) Open
In article number 1900710, He-Xiu Xu and co-workers propose a strategy to realize spin-decoupled high-capacity multifunctional metasurface by multiplexing the frequency and wavevector degree of freedom. By integrating both geometric and dy…
View article: Ultrasensitive and real-time detection of chemical reaction rate based on the photonic spin Hall effect
Ultrasensitive and real-time detection of chemical reaction rate based on the photonic spin Hall effect Open
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. However, the precise and real-time detection of the reaction rate remains challenging due to its fast and dynamical pr…
View article: Interference-assisted kaleidoscopic meta-plexer for arbitrary spin-wavefront manipulation
Interference-assisted kaleidoscopic meta-plexer for arbitrary spin-wavefront manipulation Open
View article: Large in-plane asymmetric spin angular shifts of a light beam near the critical angle
Large in-plane asymmetric spin angular shifts of a light beam near the critical angle Open
The photonic spin Hall effect (SHE) manifests itself as the transverse and in-plane spin-dependent shifts of a light beam. Normally, the spin shifts are tiny due to the weak spin-orbit coupling. Therefore, it is very important and interest…
View article: Sensitivity Enhanced Refractive Index Sensor by Reducing the Influence of In-Plane Wavevector in Photonic Spin Hall Effect
Sensitivity Enhanced Refractive Index Sensor by Reducing the Influence of In-Plane Wavevector in Photonic Spin Hall Effect Open
Photonic spin Hall effect (SHE) can be an effective sensor for determining the refractive index (RI) variation of a sensing medium. How to further improve its sensitivity is a very interesting and important issue. In this paper, we theoret…
View article: Transitional Goos-Hänchen effect due to the topological phase transitions
Transitional Goos-Hänchen effect due to the topological phase transitions Open
We examine the Goos-Hänchen (GH) effect for a Gaussian beam impinging on the surface of silicene whose topological phase transitions can be modulated by external electric field and/or irradiating circular polarized light. It is shown that …
View article: Analytic expression and propagation properties of hollow Gaussian beams for the off-waist incident case in strongly nonlocal media
Analytic expression and propagation properties of hollow Gaussian beams for the off-waist incident case in strongly nonlocal media Open