Explanipedia

High-performance metasurface sensors based on perturbation theory and boundary condition Open

Lilin Yi, Michael Yao‐Ping Peng, Hongyun Meng · 2025

Quasi-bound states in the continuum (quasi-BIC) with high quality factors and strong localized fields represent a highly competitive mechanism achieving high-performance sensors. Recently, metasurfaces with various meta-atom geometries hav…

Interferometric optical fiber sensor for simultaneous humidity and temperature measurement based on PVA/PAA hydrogel coating Open

Yongjin Chen, Jiahui Fu, Peng Huang, Shujia Ding, Zhongchao Wei , et al. · 2025

Dynamic topological charge switching in vortex beam generation using phase-change materials Open

Rongqiao He, Wu‐Ming Liu, Zhongchao Wei, Hongyun Meng, Hongzhan Liu , et al. · 2025

This study employs the phase-change material Sb 2 S 3 to design a tunable vortex beam (VB) generator based on bound states in the continuum (BICs). Sb 2 S 3 exhibits a significant contrast in refractive indices between its amorphous and cr…

High sensitivity liquid level sensor based on asymmetric fiber Mach-Zehnder interferometer Open

Jian Luo, Jiyuan Cai, Zhongchao Wei, Zhichao Hu, Wei‐Chun Chen , et al. · 2025

Graph-Based Adaptive Network With Spatial-Spectral Features for Hyperspectral Unmixing Open

Hua Dong, Xiaohua Zhang, Jinhua Zhang, Hongyun Meng, Licheng Jiao · 2025

Hyperspectral unmixing aims to extract basic material (endmember) spectra and estimate their corresponding fractions (abundances) from observed pixels in hyperspectral images (HSIs). Recently, blind unmixing methods based on autoencoders (…

CenterFormer: A Center Spatial–Spectral Attention Transformer Network for Hyperspectral Image Classification Open

Chen Jia, Xiaohua Zhang, Hongyun Meng, Shuxiang Xia, Licheng Jiao · 2025

Feature extraction is crucial for hyperspectral image classification (HSIC), and transformer-based methods have demonstrated significant potential in this field due to their exceptional global modeling capabilities. However, existing trans…

Interferometric Optical Fiber Sensor for Simultaneous Humidity and Temperature Measurement Based on Pva/Paa Hydrogel Coating Open

Yongjin Chen, Jiahui Fu, Peng Huang, Shujia Ding, Zhongchao Wei , et al. · 2025

Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics (Adv. Sci. 48/2024) Open

Guitian Qiu, Lingan Kong, Mengjiao Han, Qian Zhang, Majeed Ur Rehman , et al. · 2024

p‐Type Doping In article number 2408634, Qian Zhang, Hongyun Meng, Qijie Liang, and co‐workers demonstrate the conversion of n‐type or ambipolar 2D semiconductors to p‐type semiconductors through intralayer/interlayer codoping. The codopin…

Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics Open

Guitian Qiu, Lingan Kong, Mengjiao Han, Qian Zhang, Majeed Ur Rehman , et al. · 2024

2D semiconductors show promise as a competitive candidate for developing future integrated circuits due to their immunity to short‐channel effects and high carrier mobility at atomic layer thicknesses. The inherent defects and Fermi level …

Generation of dual vortices with controlled topological charges based on spin-decoupled moiré metalens Open

Shu Shang, Hongzhan Liu, Hongyun Meng, Faqiang Wang, Xiangbo Yang , et al. · 2024

By their powerful talent in manipulating optical parameters, metasurfaces demonstrate great ability in the generation of the vortex beams. Until now, vortex beam generators constructed by metasurfaces mostly lack tunability, which reduces …

Strain-insensitive micro torsion and temperature sensor based on a helical taper seven-core fiber structure Open

Junneng Guan, Shujie Xu, Shiyu Liu, Guitian Qiu, Zhongchao Wei , et al. · 2024

We propose a multimode interference-based optical fiber NHTSN sensor with a helical taper for simultaneous measurement of micro torsion and temperature. The sensor consists of single mode fiber (SMF), no-core fiber (NCF), and seven-core fi…

Efficient Second Harmonic Generation in the Linbo3 Metasurface Based on Quasi-Bound States in the Continuum Under Low Pump Light Intensity Open

Lilin Yi, Yingqiu Zhang, Yizhou Zhuo, Guohua Qin, Michael Yao‐Ping Peng , et al. · 2024

Pixel-to-Abundance Translation: Conditional Generative Adversarial Networks Based on Patch Transformer for Hyperspectral Unmixing Open

Li Wang, Xiaohua Zhang, Longfei Li, Hongyun Meng, Xianghai Cao · 2023

Spectral unmixing is a significant challenge in hyperspectral image processing. Existing unmixing methods utilize prior knowledge about the abundance distribution to solve the regularization optimization problem, where the difficulty lies …

Two-Stream Networks for Contrastive Learning in Hyperspectral Image Classification Open

Shuxiang Xia, Xiaohua Zhang, Hongyun Meng, Jiaxin Fan, Licheng Jiao · 2023

In the domain of hyperspectral image (HSI) classification, the majority of deep learning methods have necessitated a substantial number of manually annotated samples to achieve outstanding results. However, the process of annotating HSI is…

An ultra-low detection limit Fe 3+ optical fiber fluorescent sensor based on a anti-B 18 H 22 derivative with aggregation-induced emission enhancement Open

Yong Zheng, Yulian Zheng, Yimei Zhang, Hongyun Meng, Chunhua Tan · 2023

A fluorescent Fe3+ probe ((C10H7NO2)2B18H20, M1) by introducing two isoquinoline-1-carboxylic acid group into the 6,9-position of anti-B18H22 was designed and synthesized. The structure of M1 was investigated by 1H NMR, MS, FT-IR and theor…

Characteristics of optical system generating ultra-wide photonic band gap and its potential practicability Open

Yan Zhi, Weici Liu, Xiangbo Yang, Zhongchao Wei, Shiping Du , et al. · 2023

In this study, we design a one-dimensional periodic ring multi-connected optical waveguide network to solve the problem of obtaining ultra-wide photonic band gaps that are too complex for the photonic band gap width to be tuned. Analysing …

Multifunctional metalens generation via bilayer phase-change metasurfaces at near-infrared wavelength Open

Zhipeng Zhang, Zhao Zhang, Zijin Tong, Mingyu Yang, Junneng Guan , et al. · 2023

Multifunctional metalens with tunable focus and intensity is powerfully attractive for compact planar optics. However, the limited degree of freedom in the single-layer metasurface design makes it difficult to satisfy more complicated func…

Four-channel metasurface for multiplexing images under two nonorthogonal polarization states Open

Wenyuan Liu, Yizhou Zhuo, Likun Xiao, Chen Chen, Shu Shang , et al. · 2023

By its unparalleled capacity to manipulate optical parameters, metasurfaces demonstrate the ability to simultaneously manipulate the amplitude and phase of incident light. Exhibiting both near-field nanoprinting images and far-field hologr…

An Ultra-Low Detection Limit Fe3+ Optical Fiber Fluorescent Sensor Based on a Anti-B18h22 Derivative with Aggregation-Induced Emission Enhancement Open

Yong Zheng, Yulian Zheng, Yimei Zhang, Hongyun Meng, Chun Hua Tan · 2023

Asymmetric structure optical fiber humidity sensor assisted by the virtual Vernier effect Open

Zijin Tong, Zhao Zhang, Zhipeng Zhang, Mingyu Yang, Zhenyong Dong , et al. · 2022

In this paper, an asymmetric structure optical fiber sensor is proposed to measure relative humidity (RH). The sensing structure is composed of splicing dispersion compensation fiber (DCF) and coreless fiber (NCF), and two sections of sing…

Strong enhancement of Goos–Hänchen shift through the resonant optical tunneling effect Open

Liujing Xiang, Weici Liu, Zhongchao Wei, Hongyun Meng, Hongzhan Liu , et al. · 2022

The resonant optical tunneling effect (ROTE) originates from the frustrated total reflection effect because unique transmission characteristics are used to study high-sensitivity sensors. In this study, we theoretically demonstrated that c…

Communication wavelength investigation of bound states in the continuum of one-dimensional two-material periodic ring optical waveguide network Open

Yan Zhi, Weici Liu, Xiangbo Yang, Zhongchao Wei, Shiping Du , et al. · 2022

In this study, a one-dimensional (1D) two-material period ring optical waveguide network (TMPROWN) was designed, and its optical properties were investigated. The key characteristics observed in the 1D TMPROWN include the following: (1) Bo…

Three-channel metasurface based on simultaneous and independent control of near and far field under a single line light source Open

Zhao Zhang, Zhipeng Zhang, Zijin Tong, Mingyu Yang, Junneng Guan , et al. · 2022

Metasurface based on independent and simultaneous control of near field and far field has significant potential for use in multichannel optics platform devices. However, the previous studies cannot satisfy independent and simultaneous cont…

Band-tunable achromatic metalens based on phase change material Open

Yuhang Zhang, Zuyu Li, Shuai Qin, Hui Huang, Kaiqian Jie , et al. · 2022

Achromatic metalens have the potential to significantly reduce the size and complexity of broadband imaging systems. A large variety of achromatic metalens has been proposed and most of them have the fixed achromatic band that cannot be ac…

Dual-channel metasurfaces for independent and simultaneous display in near-field and far-field Open

Zuyu Li, Yuhang Zhang, Hui Huang, Shuai Qin, Kaiqian Jie , et al. · 2022

The operation of near-field and far-field can be employed to display holographic and nanoprinting images, which significantly improves the information density. Previous studies have proposed some approaches to display the images independen…

Electronically Controlled Time-Domain Integral Average Depolarizer Based on a Barium Titanate (BTO) Metasurface Open

Kaiqian Jie, Hui Huang, Shuai Qin, Jianping Guo, Hongzhan Liu , et al. · 2022

A depolarizer, a kind of optical element that converts polarized light to unpolarized light, has been found massive applications in classical optics. However, depolarizers based on metasurface which can be applied in integrated optics have…

Generation and conversion of a dual-band Laguerre-Gaussian beam with different OAM based on a bilayer metasurface Open

Li Chen, Yue Liu, Lin Zhao, Kuangling Guo, Zhongchao Wei , et al. · 2022

In this paper, we propose a bilayer metasurface with dual-operating modes to realize the generation and conversion of dual-band Laguerre-Gaussian beam with different OAM. The bilayer metasurface consists of amorphous silicon (a-Si) and amo…

Dynamic generation of giant linear and circular dichroism via phase-change metasurface Open

Hui Huang, Shuai Qin, Kaiqian Jie, Jianping Guo, Qiaofeng Dai , et al. · 2021

Dichroism, an important property for the manipulation and characterization of polarization states, has been widely studied. However, owing to the inherent relationship between linear and circular polarization, it is difficult to generate h…

A Bifunctional Silicon Dielectric Metasurface Based on Quasi-Bound States in the Continuum Open

Jianan Wang, Weici Liu, Zhongchao Wei, Hongyun Meng, Hongzhan Liu , et al. · 2021

Quasi-bound states in the continuum provide an effective and observable way to improve metasurface performance, usually with an ultra-high-quality factor. Dielectric metasurfaces dependent on Mie resonances have the characteristic of signi…

Active Modulating the Intensity of Bifocal Metalens with Electrically Tunable Barium Titanate (BTO) Nanofins Open

Shuai Qin, Hui Huang, Kaiqian Jie, Sirui Zeng, Li Chen , et al. · 2021

The multifocal metalens with an adjustable intensity has great potential in many applications such as the multi-imaging system, but it is less studied. In this paper, by combining the electro-optic material barium titanate (BTO) with the P…

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