A5100377103- Plasmonic and Surface Plasmon Research
- Antenna Design and Analysis
- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Terahertz technology and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Millimeter-Wave Propagation and Modeling
- Orbital Angular Momentum in Optics
- Advanced Fiber Optic Sensors
- Antenna Design and Optimization
- Optical Coatings and Gratings
- Radio Wave Propagation Studies
- Nanofabrication and Lithography Techniques
- Electromagnetic Scattering and Analysis
- Precipitation Measurement and Analysis
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Materials and Mechanics
- Nanowire Synthesis and Applications
- Surface Roughness and Optical Measurements
- Semiconductor Lasers and Optical Devices
- Photoacoustic and Ultrasonic Imaging
- Ferroelectric and Negative Capacitance Devices
Xinjiang Normal University
2024-2025
State Key Laboratory of Millimeter Waves
2018-2025
Southeast University
2011-2025
Zaozhuang University
2018-2025
Air Force Engineering University
2024-2025
Central South University
2021-2024
Northwest University
2022-2024
Shanghai Micro Satellite Engineering Center
2024
State Key Laboratory of Digital Medical Engineering
2011-2023
Tianjin University of Technology
2023
An electronically controllable microstrip leaky-wave antenna (LWA) to steer the radiations at a fixed frequency is presented. The proposed LWA composed of corrugated line loaded by varactor diodes with triangular-modulated surface impedance. Due periodical modulation impedance, guided waves can be converted into efficiently frequency-scanning property. Furthermore, impedance reconfigured changing capacitance diode through dc bias voltage, which will make radiation beam in large angle range...
Metasurfaces (two-dimensional metamaterials) have attracted much attention in recent years. However, due to the symmetric design of its cascaded elements, a traditional transmission-type metasurface must be at least three layers thick achieve high transmission and 360\ifmmode^\circ\else\textdegree\fi{} phase control simultaneously. This study presents an ultrathin Huygens' metasurface, composed double-layer antisymmetric transmitarray that can realize once. Based on this high-gain (3.3%...
Abstract Digital coding metasurface, which provides a new approach to link the physical world and information science, has been quickly developed in recent years. However, all previously reported metasurfaces cannot achieve independent controls of different polarizations both transmission reflection spaces at same time. In this work, reconfigurable anisotropic digital metasurface loaded with electronically controlled PIN diodes is proposed that can independently manipulate not only...
In nature, many flowers can open their petals into blooming or furl them buds and simultaneously alter the petal colors under precise control of light, temperature, pH, humidity, other environmental stimuli. Inspired by this fascinating natural phenomenon, here we report a two-spiropyran-unit-functionalized, monodomain/polydomain bilayer-structured liquid crystal elastomer strategy to fabricate an ultraviolet, green, near-infrared trilight-modulated tricolor-changing flower mimic soft...
The apoptosis of cancer cells was experimentally measured by terahertz (THz) biosensors based on the metamaterials (MMs). non-bianisotropic resonance with an electric field up to 106 V/m exhibited at 0.85 THz, where magnetic dipoles were cancelled in unit cell. simulate results show dependence frequency shift occupying ratio and refractive index analytes. theoretical sensitivity calculated 182 GHz/RIU. experimental imply that resonant would red increase concentration cells. Furthermore, HSC3...
We propose a supercompact and ultrawideband (UWB) bandpass filter for spoof surface plasmonic polariton (SSPP) mode. By using meander-line technology, the electrical size of proposed SSPP structure is reduced dramatically, which only about 1/4 traditional rectangular-groove with same geometry. Based on structure, we construct UWB working in frequency range 0.25-4.5 GHz, whose geometric 87.5 × 12.8 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Abstract Compared with organic–inorganic hybrid perovskites, fully inorganic perovskites show an increased stability and are therefore attracting considerable attention, especially in recent years. Such materials not only being extensively used applications such as solar cells light-emitting diodes, but also great potential photodetectors due to their exceptional optoelectronic properties. In this review, the progress on emerging based is comprehensively summarized, focusing versatile...
Abstract The entanglement of the momentum light with its spin at interfaces or inside structured media, known as photonic spin‐Hall effect, holds great promise for various applications, such beam splitting, focusing, and polarization detection. However, effect remains unexplored in field logic operation. In this work, spoof surface plasmon polaritons (SSPPs) programmable metamaterial is demonstrated. Moreover, devices based on plasmonic are designed, enabling control energy flow through...
A dual-band fixed-frequency beam-scanning leaky-wave antenna (LWA) based on a corrugated microstrip line (CML) has been proposed. The proposed CML includes series of uniform grooves that are alternately loaded by capacitors and varactors. unit cell the supports two kinds modes in different frequency bands. In each band, dispersion characteristics can be electronically tuned changing capacitance cell. Therefore, simply bias voltage varactor diodes CML, surface impedance LWA is dynamically...
Subradiant plasmon modes play an important role in coupling, which can couple to the superradiant resulting Fano resonances. In this study, we investigated behaviors of subradiant plasmons multilayer metal–dielectric nanoshells using generalized Mie theory. We showed that it is possible get a pronounced resonance single concentric nanoshell by controlling size and geometry. The near-field coupling effects chains were studied changing alignment, particle number, interparticle spacing. local...
Abstract Spoof surface plasmon polaritons (SSPPs) can be supported and propagated on metal surfaces decorated with periodic subwavelength structures, whose dispersion properties are determined by geometrical dimensions of unit structures. However, the functions plasmonic devices made conventional passive SSPPs will fixed once fabricated. Here, an electronically controlled programmable SSPP waveguide is presented, dispersions manipulated in real time at fast speed programing bias voltage...
Although terahertz metasurface-enabled biosensors focus on current research, reports of multidimensional ultra-sensitive detection in the (THz) regime are rare. Here, we present a novel flexible THz biosensor that consists electromagnetic-induced transparency-like metasurfaces and patterned graphene, which is used for plant protein. Based changes frequencies amplitude, proposed could detect protein molecules with 42.3 pg/ml limit. The internal mechanism can be explained by positive impact...
Active phased array antenna (APAA) is a representative of complex electronic equipment, and it plays significant roles in scenarios such as battlefield situation perception, aviation guidance, communication. It has become the core equipment land, navigation, aeronautical applications. With continuous improvement technical changes military requirements, working frequency band, pointing accuracy, gain, low sidelobe level APAA increase, multi-disciplinary design contradiction between electrical...
Leaky-wave antennas (LWAs), which exploit traveling waves with phase velocity greater than the speed of light, have attracted much attention for their miniaturizability and easy fabrication. However, polarization states leaky-wave radiation are generally hard to design at will. This study presents a spoof-surface-plasmon waveguide bilateral tilted grooves tailor its emission. The is simple feasible realizing arbitrary leaky waves, just by changing relative displacement on either side...
Vortex beams carrying orbital angular momentum (OAM) have recently attracted great interest due to their capability for providing a new method increase the communication channels in wireless communications. It is expected that unbounded eigenstates of OAM can bring large number enhance transmission capacity. Here, we propose an effective strategy generate vortex by using spoof surface plasmon polaritons (SSPPs) microwave region. A periodically modulated SSPP ring resonator applied convert...
A leaky-wave antenna (LWA) is proposed on the basis of an ultrathin spoof surface plasmonic (SSP) waveguide, which can convert SSP waves into spatial multi-polarized radiation waves. The waveguide composed a metallic strip line with periodic unit cells, and each consists two orthogonally beveled slots. feature single-conductor determines that pattern omnidirectional in azimuth direction around LWA. Due to design slots, different polarized radiations be achieved along direction. Simulation...
Microsphere-assisted imaging is an extraordinary simple technology that can obtain optical super-resolution under white-light illumination. Here, we introduce a method to improve the resolution of microsphere lens by increasing its numerical aperture. In our proposed structure, BaTiO3 glass (BTG) lenses are semi-immersed in S1805 layer with refractive index 1.65, and then, microspheres fully embedded elastomer 1.4. We experimentally demonstrate this combination conventional microscope,...
A compact axial-mode helical antenna (AMHA) is presented based on spoof surface plasmon polaritons (SSPPs). The proposed consists of an SSPP waveguide, a matching metal strip, and reflective ground. To achieve miniaturization good circular polarization (CP) performance, waveguide formed by periodically slotted strip wound around uniform foam cylinder designed as the radiation part AMHA. Compared with traditional AMHA using metallic line, can reduce length 20%, while physical aperture,...
In recent years, metal surface plasmon resonance sensors and dielectric guided-mode have attracted the attention of researchers. Metal are sensitive to environmental disturbances but high optical losses, while low losses limited sensitivity. To overcome these limitations, hybrid that combine advantages were proposed achieve a sensitivity Q factor at same time. this paper, hollow cylindrical tetramer array was designed, effects hole radius, external height, period, incidence angle,...