A5043572759- Quantum optics and atomic interactions
- Quantum Information and Cryptography
- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Cold Atom Physics and Bose-Einstein Condensates
- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Advanced Fiber Laser Technologies
- Advanced Antenna and Metasurface Technologies
- Quantum Mechanics and Applications
- Orbital Angular Momentum in Optics
- Laser-Matter Interactions and Applications
- Atomic and Subatomic Physics Research
- Quantum and electron transport phenomena
- Nonlinear Photonic Systems
- Terahertz technology and applications
- Thermal Radiation and Cooling Technologies
- Photonic Crystals and Applications
- Quantum Computing Algorithms and Architecture
- Photorefractive and Nonlinear Optics
- Antenna Design and Analysis
- Advanced MEMS and NEMS Technologies
- Semiconductor Quantum Structures and Devices
- Random lasers and scattering media
- Spectroscopy and Quantum Chemical Studies
Yangtze University
2019-2025
Westlake University
2024
Affiliated Hospital of Southwest Medical University
2022-2024
Kunming Medical University
2023
Southwest Medical University
2023
Qingdao University of Science and Technology
2023
Sixth Affiliated Hospital of Kunming Medical University
2023
Southeast University
2012-2022
Nanjing University of Information Science and Technology
2019-2021
National Tsing Hua University
2008-2016
We present a novel, structurally simple, multifunctional broadband absorber. It consists of patterned vanadium dioxide film and metal plate spaced by dielectric layer. Temperature control allows flexible adjustment the absorption intensity from 0 to 0.999. The modulation mechanism absorber stems thermogenic phase change properties material. achieves total reflection in terahertz band when is insulated state. When its metallic state, near-perfect ultra-broadband range 3.7 THz-9.7 THz....
The paper proposes an ultra-narrow band graphene refractive index sensor, consisting of a patterned layer on the top, dielectric SiO2 in middle, and bottom Au layer. absorption sensor achieves efficiency 99.41% 99.22% at 5.664 THz 8.062 THz, with bandwidths 0.0171 0.0152 respectively. Compared noble metal absorbers, our absorber can achieve tunability by adjusting Fermi level relaxation time geometry unchanged, which greatly saves manufacturing cost. results show that has properties...
A four-band terahertz tunable narrow-band perfect absorber based on a bulk Dirac semi-metallic (BDS) metamaterial with microstructure is designed. The three-layer structure of this from top to bottom the layer, dielectric layer and metal reflector layer. Based Finite Element Method (FEM), we use simulation software CST STUDIO SUITE simulate absorption characteristics designed absorber. results show that rate over 93% at frequencies 1.22, 1.822, 2.148 2.476 THz, three them have achieved more...
Terahertz functional devices have been instrumental in the development of terahertz technology. Moreover, advent metamaterials has greatly contributed to advancement devices. However, most today's band exhibit poor performance and are mono-functional. This limits scalability application potential To achieve diversification tunability device functionality, we propose a combination metamaterial structures vanadium dioxide film. A absorber based on thermotropic phase change material VO2...
In this work, we demonstrate that the performance of c-Si/ZnO heterojunction ultrathin-film solar cells (SCs) is enhanced by an integrated structure c-Si trapezoidal pyramids on top a active layer and Al in back electrode. The pyramid (TTP) increases absorption short wavelengths lengthening propagation distance incident light coupling into photonic modes layer. bottom (BP) improves overall optical especially for long wavelength band forming surface plasmon resonance (SPR) mode As result,...
Abstract In this paper, an active tunable terahertz bandwidth absorber based on single-layer graphene is proposed, which consists of a layer, photo crystal plate, and gold substrate. When the Fermi energy ( E f ) 1.5 eV, shows high absorption in range 3.7 THz–8 THz, total rate 96.8%. By exploring mechanism absorber, excellent physical regulation. The also good adjustability by changing graphene. This means that exhibits tunability adjusting parameters absorber. Meanwhile, polarization...
Perfect metamaterial absorbers have attracted researchers’ attention in solar energy harvesting and utilization. An ideal absorber should provide high absorption, be ultra-wideband, insensitive to polarization incident angles, which brings challenges research. In this paper, we proposed optimized an ultra-wideband based on Ti-Al2O3 cross elliptical disk arrays obtain the absorption of energy. The addition a cavity greatly improves energy-absorbing effect operating band, has research value....
With the development of science and technology, intermediate infrared technology has gained more attention in recent years. In research described this paper, a tunable broadband absorber based on Dirac semimetal with layered resonant structure was designed, which could achieve high absorption (more than 0.9) about 8.7 THz frequency range 18-28 THz. It confirmed that comes from strong resonance between layers, localised surface plasmon. The gold substrate, is composed three layers optical...
A scheme for high-efficiency transfer of optical vortices is proposed by an inelastic two-wave mixing (ITWM) process in inverted-Y four-level atomic medium, which originally prepared a coherent superposition two ground states. The orbital angular momentum (OAM) information the incident vortex probe field can be transferred to generated signal through ITWM process. Choosing reasonable experimentally realizable parameters, we find that presence off-resonance control greatly improve conversion...
We study the low-intensity light pulse propagation through an asymmetric double quantum well via Fano-type interference based on intersubband transitions. The of across is studied analytically and numerically with coupled Maxwell-Schr\"odinger equations. show generation ultraslow bright dark optical solitons in this system. Whether are can be controlled by ratio dipole moments Such investigation present work may lead to important applications such as high-fidelity delay lines buffers...
We theoretically investigate the simultaneous formation and stable propagation of slow optical soliton pairs in semiconductor quantum dots with a four-level biexciton-exciton cascade configuration. Owing to destructive interference set up by two continuous wave control fields that couple biexciton state, linear as well nonlinear dispersion can be dramatically enhanced simultaneously absorptions weak probe being almost suppressed. These results reveal detrimental distortions weak-pulsed due...
In this paper, quintuple Fano resonances are produced and numerically analyzed based on a plasmonic resonator system. The system is composed of an optical metal–insulator–metal (MIM) waveguide, side-coupled disk, concentric-ring resonator. Five can be seen, which originate from the interaction cavity mode between disk transmission spectrum shows that resonance independently tuned by changing different geometrical parameters, such as outer radius or inner refractive index sensitivity...
We propose and analyze an efficient scheme for the coherent transfer of optical vortices in a cold atomic ensemble with four-level double-$\mathrm{\ensuremath{\Lambda}}$ configuration. The orbital angular-momentum (OAM) information can be transferred from incident vortex fields to generated backward signal field via resonant four-wave mixing (FWM). Considering single probe initially acting on one transition using experimentally achievable parameters, we identify conditions under which FWM...