Explanipedia

Do Vision-Language Models Have Internal World Models? Towards an Atomic Evaluation Open

Qiyue Gao, Xinyu Pi, Kevin Liu, Junrong Chen, Rongcao Yang , et al. · 2025

Enhancement of dual autofocusing ability for ring Pearcey edge dislocation beams Open

S. Dong, Heping Jia, Rongcao Yang, Xianguang Kong · 2024

When the ring with the maximum intensity deviates from the central point, the dual autofocusing performance of the ring Pearcey edge dislocation (RPED) beams in free space is gradually destroyed. To address the degradation in the dual auto…

Spectrum conversion and pattern preservation of Airy beams in fractional systems with a dynamical harmonic-oscillator potential Open

Xiaoqin Bai, Juan Bai, Boris A. Malomed, Rongcao Yang · 2024

We investigate the dynamics of optical Airy beams in the one-dimensional fractional Schrödinger equation with a harmonic-oscillator (HO) potential subjected to modulation along the propagation distance. Deriving general solutions for propa…

Abrupt focus and bright spot formation in fractional system with PT-symmetric nonlocal nonlinearity Open

Xiaoqin Bai, Rongcao Yang, Jing Chen, Juan Bai, Heping Jia · 2024

We study the dynamics of Gaussian beams in fractional system with PT-symmetric nonlocal nonlinearity. It is found that the Gaussian beam with transverse displacement can abruptly focus to form bright spot in one sub-branch after experienci…

Superposition of modulated nonlinear waves in inhomogeneous systems with negative coherent coupling Open

Shuoshuo Jia, Heping Jia, Rongcao Yang, Kaikai Fan · 2023

The superimposed wave solutions of the variable coefficient nonlinear Schrödinger equations with negative coherent coupling are derived under a more relaxed constraint condition than those in previous literatures. For the benefit of the mo…

Constructing Families of Solutions to an Integrable Time-Dependent Shallow Water Wave Equation in (1+1)-Dimensions Open

Zhou-Zheng Kang, Rongcao Yang · 2023

In this paper, an integrable shallow water wave equation with timedependent coefficients in (1+1)-dimensions is taken into account. Through employing the generalized three-wave methods, a series of (double) solitary wave solutions and peri…

Amplitude-phase modulated composite waves in coupled nonlocal system with self-induced PT symmetric potential Open

Rongcao Yang, Jing Chen, Xiaoqin Bai, Heping Jia, Juan Bai · 2023

We consider a coupled nonlocal nonlinear Schrödinger equation (nNLSE) with self-induced parity-time (PT) symmetric potential and investigate abundant amplitude-phase modulated composite waves manifesting diverse evolution patterns. It is f…

Study of Fano resonance and its application in MIM waveguide using a k-shaped Resonator Open

Haopeng Fan, Jinping Tian, Rongcao Yang · 2022

In this paper, a plasmonic MIM waveguide consisting of a k-shaped resonant cavity is designed, which can support three Fano resonances. The physical mechanisms behind the multiple Fano resonances are studied with the help of field distribu…

VO<sub>2</sub>-assisted multifunctional metamaterial for polarization conversion and asymmetric transmission Open

Yijia Zhao, Rongcao Yang, Yuxin Wang, Wenmei Zhang, Jinping Tian · 2022

A VO 2 -assisted temperature-controlled multifunctional metamaterial polarization converter with large asymmetric transmission (AT) is proposed by introducing a gold-VO 2 grating. The converter can be switched between reflection mode and t…

On multi-soliton solutions to a generalized inhomogeneous nonlinear Schrodinger equation for the Heisenberg ferromagnetic spin chain Open

Zhou-Zheng Kang, Rongcao Yang · 2022

A generalized inhomogeneous higher-order nonlinear Schrodinger (GIHNLS) equation for the Heisenberg ferromagnetic spin chain system in (1+1)-dimensions under zero boundary condition at infinity is taken into account. The spectral analysis …

On multi-soliton solutions to the Heisenberg ferromagnetic spin chain equation in (2+1)-dimensions Open

Zhou-Zheng Kang, Rongcao Yang · 2022

This paper concentrates on the Heisenberg ferromagnetic spin chain (HFSC) equation in (2+1)-dimensions modelling nonlinear wave propagation in ferromagnetic spin chain. A variable transformation is first employed to reduce the studied equa…

High efficiency and broadband wide-angle linear polarization converter based on dumbbell-like resonant structure Open

Ze Wang, Jinping Tian, Rongcao Yang · 2022

In this paper, a broadband wide-angle reflective linear polarization converter is designed, of which a dumbbell-like resonant structure is applied to form the unit cell of the periodic metasurface. Research results show that characteristic…

The effect of coherent coupling nonlinearity on modulation instability and rogue wave excitation Open

Heping Jia, Rongcao Yang, Qi Guo, JM Christian · 2022

Multifunctional metasurface for broadband absorption, linear and circular polarization conversions Open

Zhaohua Li, Rongcao Yang, Jiayun Wang, Yijia Zhao, Jinping Tian , et al. · 2021

With the development of metasurfaces and the improvement of manufacturing technology, it is important and imperative to design novel metasurfaces that can flexibly manipulate terahertz (THz) waves. In this paper, a multifunctional metasurf…

Tunable quad-band perfect metamaterial absorber on the basis of monolayer graphene pattern and its sensing application Open

Jinping Tian, Rujiao Ke, Rongcao Yang, Weihua Pei · 2021

Dual-band tunable perfect absorber based on monolayer graphene pattern Open

Rujiao Ke, Wen Liu, Jinping Tian, Rongcao Yang, Weihua Pei · 2020

In this paper, we propose a metamaterial perfect absorber (MPA), which is a three-layer structure composed of a periodically placed “ǂ” type graphene array on top of a gold layer separated by a SiO2 dielectric spacer, to achieve dual band …

Miniaturised wideband antenna with low profile based on dual‐layer metasurface Open

Xue Chen, Wenmei Zhang, Liping Han, Xinwei Chen, Guorui Han , et al. · 2020

A novel miniaturised wideband antenna based on dual‐layer metasurface (MS) is proposed in this study. It is composed of three metallic and two substrate layers. The top metallic layer is the MS whose unit is a square patch etched four inte…

Reconfigurable Multifunctional Metasurface for Broadband Polarization Conversion and Perfect Absorption Open

Jiayun Wang, Rongcao Yang, Runbo Ma, Jinping Tian, Wenmei Zhang · 2020

A reconfigurable multifunctional metasurface is proposed to realize the switching between broadband polarization conversion and perfect absorption by integrating the PIN diodes into the structure. An appropriate feed plate is designed to p…

Multi-Beam Patch Antenna Based On Metasurface Open

Jianan Zhang, Liping Han, Xinwei Chen, Rongcao Yang, Wenmei Zhang · 2019

In this paper, a multi-beam antenna based on metasurface is proposed. By employing the metasurface as radiating element, steering the beam in the elevation plane is realized. Also, the substrate placing above the metasurface helps to furth…

Ultrashort nonautonomous similariton solutions and the cascade tunneling of interacting similaritons Open

Rongcao Yang, Jie Gao, Heping Jia, Jinping Tian, JM Christian · 2019

Frequency-reconfigurable metamaterial absorber/reflector with eight operating modes Open

Rongcao Yang, Jianping Xu, Jiayun Wang, Runbo Ma, Wenmei Zhang · 2019

Reconfigurable design is an effective way to achieve multifunctional devices for system integration. Limited by the feeding network for multi-resonators, multimode absorbers with more than four modes are rarely reported. In this paper, a f…

Balanced Homodyne Detector With Independent Phase Control and Noise Detection Branches Open

JinRong Wang, Wenhui Zhang, Long Tian, Yajun Wang, Rongcao Yang , et al. · 2019

Squeezed state light is a fundamental resource for many quantum optics experiments. Important applications like quantum-enhanced magnetometer and quantum key distribution, require the squeezing level as high as possible. In balanced homody…

Polarization-Controlled and Flexible Single-/Penta-Band Metamaterial Absorber Open

Jiayun Wang, Rongcao Yang, Jianping Xu, Jinping Tian, Runbo Ma , et al. · 2018

In this paper, a polarization-controlled and flexible metamaterial absorber made of a set of wires etched on ultrathin teflon dielectric substrate is proposed. The simulation results showed that the proposed absorber achieved single-band a…

Grating-type mid-infrared light absorber based on silicon carbide material Open

Wenrui Xue, Xi Chen, Yanling Peng, Rongcao Yang · 2016

A kind of grating-type mid-infrared light absorber based on silicon carbide (SiC) material is designed and its absorption properties are studied using the finite-difference frequency-domain (FDFD) method. The results show that, its absorpt…

Exact dipole solitary wave solution in metamaterials with higher-order dispersion Open

Xuemin Min, Rongcao Yang, Jinping Tian, Wenrui Xue, JM Christian · 2016

We present an exact dipole solitary wave solution in a mutual modulation form of bright and dark \nsolitons for a higher-order nonlinear Schrödinger equation with third- and fourth-order dispersion \nin metamaterials (MMs) using an ansatz …

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