A5090970330- Orbital Angular Momentum in Optics
- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Near-Field Optical Microscopy
- Metamaterials and Metasurfaces Applications
- Photonic Crystals and Applications
- Plasma Applications and Diagnostics
- Gold and Silver Nanoparticles Synthesis and Applications
- Microfluidic and Bio-sensing Technologies
- Digital Holography and Microscopy
- Liquid Crystal Research Advancements
- Advanced Antenna and Metasurface Technologies
- Semiconductor Lasers and Optical Devices
- Electrohydrodynamics and Fluid Dynamics
- Advanced Fiber Optic Sensors
- 2D Materials and Applications
- Optical Coatings and Gratings
- Optical Polarization and Ellipsometry
- Photorefractive and Nonlinear Optics
- Electrowetting and Microfluidic Technologies
- Advanced Photocatalysis Techniques
- Semiconductor Quantum Structures and Devices
- Optical and Acousto-Optic Technologies
- Phase-change materials and chalcogenides
- Optical measurement and interference techniques
Jilin University
2018-2025
Xi'an Jiaotong University
2022-2024
RMIT University
2015-2024
National Research Tomsk State University
2024
The University of Melbourne
2002-2022
Xiamen University
2018-2021
Huawei Technologies (China)
2021
MIT University
2021
Shenyang Normal University
2019-2020
Shenzhen University
2015-2019
Light can be coupled into propagating electromagnetic surface waves at a metal-dielectric interface known as plasmon polaritons (SPPs). This process has traditionally faced challenges in the polarization sensitivity of coupling efficiency and controlling directionality SPPs. We designed demonstrated plasmonic couplers that overcome these limits using polarization-sensitive apertures gold film. Our devices enable polarization-controlled tunable directional with polarization-invariant total...
We show that perfect absorption can be achieved in a system comprising single lossy dielectric layer of thickness much smaller than the incident wavelength on an opaque substrate by utilizing nontrivial phase shifts at interfaces between media. This design is implemented with ultra-thin (∼λ/65) vanadium dioxide (VO2) sapphire, temperature tuned vicinity VO2 insulator-to-metal transition, leading to 99.75% λ = 11.6 μm. The structural simplicity and large tuning range (from ∼80% 0.25%...
Data transmission rates in optical communication systems are approaching the limits of conventional multiplexing methods. Orbital angular momentum (OAM) vortex beams offers a new degree freedom and potential to increase capacity free-space systems, with OAM acting as information carriers for division (OAM-DM). We demonstrate independent collinear channel generation, simultaneous detection using Dammann gratings (DOVGs). achieve 80/160 Tbit s−1 uniform power distributions along all channels,...
A flat optical device that generates vortices with a variety of topological charges is demonstrated. This spatially modulates light beams over distance much smaller than the wavelength in direction propagation by means an array V-shaped plasmonic antennas sub-wavelength separation. Optical are shown to develop after from array, feature has major potential implications for integrated optics.
We report a new type of holographic interface, which is able to manipulate the three fundamental properties light (phase, amplitude, and polarization) over broad wavelength range. The design strategy relies on replacing large openings conventional holograms by arrays subwavelength apertures, oriented locally select particular state polarization. resulting optical element can therefore be viewed as superposition two independent structures with very different length scales, that is, hologram...
We experimentally demonstrate optical rotation and manipulation of microscopic particles by use vortex beams with fractional topological charges, namely beams, which are coupled in an tweezers system. Like the integer also capable rotating induced transfer orbital angular momentum. However, unique radial opening (low-intensity gap) intensity ring encompassing dark core, due to nature beam, hinders significantly. The beam's momentum exploited guide transport particles.
A new surface wave is introduced, the cosine-Gauss beam, which does not diffract while it propagates in a straight line and tightly bound to metallic for distances up 80 μm. The generation of this highly localized shown be straightforward controllable, with varying degrees transverse confinement directionality, by fabricating plasmon launcher consisting intersecting gratings. Cosine-Gauss beams have potential applications plasmonics, notably efficient coupling nanophotonic devices, opening...
Metallic 1T-phase transition metal dichalcogenides (TMDs) are of considerable interest in enhancing catalytic applications due to their abundant active sites and good conductivity. However, the unstable nature TMDs greatly impedes practical applications. Herein, we developed a new approach for synthesis highly stable Au/Pd-MoS2 nanosheets (NSs) through assembly induced ultrastable phase achieving very high electrocatalytic activity hydrogen evolution reaction. The was evoked by novel...
Abstract The Fourier transform (FT), a cornerstone of optical processing, enables rapid evaluation fundamental mathematical operations, such as derivatives and integrals. Conventionally, converging lens performs an FT in free space when light passes through it. speed the transformation is limited by thickness focal length lens. By using wave nature surface plasmon polaritons (SPPs), here we demonstrate that can be implemented planar configuration with minimal propagation distance around 10...
As a promising counterpart of two-dimensional metamaterials, metasurfaces enable to arbitrarily control the wavefront light at subwavelength scale and hold promise for planar holography applicable multiplexing devices. Nevertheless, degrees freedom (DoF) orthogonally multiplex data have been almost exhausted. Compared with state-of-the-art methods that extensively employ orthogonal basis such as wavelength, polarization or orbital angular momentum, we propose an unprecedented method...
We propose a method for producing sequence of focused optical vortices along the propagation direction by using spiral fractal zone plate. The generated beam possesses embedded at subsidiary foci as well major ones experimental results are obtained in good agreement with simulations.
Here, we demonstrate a diffraction-free Bloch surface wave sustained on all-dielectric multilayers that does not diffract after being passed through three obstacles or across single mode fiber. It can propagate in straight line for distances longer than 110 μm at wavelength of 633 nm and could be applied as an in-plane optical virtual probe both air aqueous environment. Its ability to used water, its long distance, tolerance multiple make this ideal certain applications areas such the...
Abstract Holography is of great interest for both scientific research and industry applications, but it has always suffered from the strong dependence on wavelength polarization incident light. Having revisited Huygens–Fresnel principle, we propose a novel holography mechanism by elaborately choosing discrete point sources (PSs) realize experimentally mimicking radiated fields these PSs through carefully designed photon‐nanosieves. Removing modulation dispersion usually existing in...
Using an aqueous solution of NaCl as the cathode, we explored atmospheric pressure Ar discharge plasma generated above surface. The formation pathways hydrogen peroxide (H2O2aq) in this system were investigated. Dimethyl sulfoxide was used a scavenger hydroxyl (OH) radicals to investigate contribution dissolved OH H2O2aq. results indicate that H2O2aq is mainly formed by combination at plasma-affected thin liquid layer, while H2O2 gas phase and inside water plasma-induced ultraviolet...
Simultaneous broadband and high efficiency merits of designer metasurfaces are currently attracting widespread attention in the field nanophotonics. However, contemporary rarely achieve both advantages simultaneously. For category transmissive metadevices, plasmonic or conventional dielectric viable for either operation with relatively low at only a selection wavelengths. To overcome this limitation, nanoarcs proposed as means to accomplish two advantages. Continuous support different...
Focusing and Fourier transformation are two key functionalities of optical lenses, which vital for information refining processing. These unique features persist even carried forward on a planar configuration that works surface wave, enabling on-chip ultrafast photonic Here, we design demonstrate type spin Hall lens (pSHL) plasmon polaritons. It could perform spatially separated focusing controlled by the handedness incident circularly polarized light (CPL). Their splitting distance can...
Neuroinflammation is involved in the development of depression and may induce depression-like behaviors by affecting metabolism through interactions with circadian rhythms. As hub metabolism, mitochondria are regulated various types release signals that regulate cellular functions. In this study, we performed transcriptomic analysis hippocampus IL-33-overexpressing mice to provide new ideas explore pathogenesis inflammation-mediated at transcriptional level. Male C57BL/6J were subjected...
Imaging through strongly scattering media in noisy environments is full of challenges. To address this issue, we present an imager based on upconversion single photon detector. This detector shows superior noise tolerance due to sharp optical time gating, quantum mode selectivity, and parametric frequency upconversion. demostrate the system, experimentally compared performance a near-infrared detector, focusing influences integration time, intensity, object surface type imaging quality....
Imaging through strongly scattering media in noisy environments is full of challenges. To address this issue, we present an imager based on upconversion single photon detector. This detector shows superior noise tolerance due to sharp optical time gating, quantum mode selectivity, and parametric frequency upconversion. demostrate the system, experimentally compared performance a near-infrared detector, focusing influences integration time, intensity, object surface type imaging quality....
As a proof of concept, we experimentally demonstrate multiplexing free-space optical signals in multiple channels labeled with different states orbital angular momentum. The process is carried out by dynamic liquid-crystal spatial light modulator, while the phase function calculated an iterative algorithm. A binary amplitude computer-generated hologram serves as demultiplexer.
We demonstrate that an optical vortex with fractional topological charge can be approximated as a linear combination of the two adjacent integer charges. This theory is experimentally verified utilizing grating spectrum analyzer, i.e., computer-generated hologram 1 grating. By extracting intensity value center portion target diffraction orders, both number and sign any input identified analyzed.