A5069378732- Photonic and Optical Devices
- Photonic Crystals and Applications
- Random lasers and scattering media
- Semiconductor Lasers and Optical Devices
- Optical Coatings and Gratings
- Plasmonic and Surface Plasmon Research
- Advanced Fiber Laser Technologies
- Orbital Angular Momentum in Optics
- Gold and Silver Nanoparticles Synthesis and Applications
- Nonlinear Optical Materials Studies
- Metamaterials and Metasurfaces Applications
- Non-Destructive Testing Techniques
- Ultrasonics and Acoustic Wave Propagation
- Neural Networks and Reservoir Computing
- Advanced Fiber Optic Sensors
- Advanced Optical Imaging Technologies
- Mechanical and Optical Resonators
- Wastewater Treatment and Nitrogen Removal
- Aluminum Alloys Composites Properties
- Organic Light-Emitting Diodes Research
- Aluminum Alloy Microstructure Properties
- Organic Electronics and Photovoltaics
- ZnO doping and properties
- Near-Field Optical Microscopy
- Advanced Antenna and Metasurface Technologies
Beijing University of Technology
2016-2025
Ministry of Education of the People's Republic of China
2024
Chongqing University of Technology
2023-2024
Yale University
2024
Southern University of Science and Technology
2020
Huazhong University of Science and Technology
2020
Heilongjiang Institute of Technology
2020
Harbin Institute of Technology
2020
University of Kentucky
2004-2016
Beijing Normal University
2007-2013
Multiferroic materials have great potential in non-volatile devices for low-power and ultra-high density information storage, owing to their unique characteristic of coexisting ferroelectric ferromagnetic orders. The effective manipulation intrinsic anisotropy makes it promising control multiple degrees the storage "medium". Here, we discovered intriguing in-plane electrical magnetic anisotropies van der Waals (vdW) multiferroic CuCrP2S6. uniaxial current rectifications, properties magnon...
A waveguide-plasmonic scheme is constructed by coating the matrix of randomly distributed gold nanoisland structures with a layer dye-doped polymer, which provides strong feedback or gain channels for emission from dye molecules and enables successful running random laser. Excellent overlap plasmonic resonance nanoislands photoluminescence spectrum confinement mechanism provided active waveguide are key essentials narrow-band low-threshold operation this This kind configuration potentially...
A plasmonic random laser tunable through stretching silver nanowires embedded in a flexible substrate has been investigated.
A random laser carrying the scattering information on a biological host is promising tool for characterization of biophysical properties. In this work, lasing from label-free living cells proposed to achieve rapid cytometry apoptosis. Random achieved by adding biocompatible gain medium confocal dish containing under optically pumped conditions. The characteristics are distinct at different stages cell apoptosis after drug treatment. By analyzing power Fourier transform results spectra,...
Multifunction-integrated semitransparent organic photovoltaic cells (STOPVs), with high power generation, colorful transmittance/reflectance, excellent ultraviolet (UV) protection, and thermal insulation, are fully in line the concept of architectural aesthetics photoprotection characteristics for building-integrated photovoltaic-window. For indelible rainbow color window, one crucial issue is to realize integration these photons- photoelectric-related multifunction. Herein, dynamic...
Abstract Linearly polarized organic light-emitting diodes have become appealing functional expansions of polarization optics and optoelectronic applications. However, the current linearly exhibit low performance, cost-prohibitive process, monochromatic modulation limit. Herein, we develop a switchable dual-color orthogonal linear mode in diode, based on dielectric/metal nanograting-waveguide hybrid-microcavity using cost-efficient laser interference lithography vacuum thermal evaporation....
Low-cost and miniaturized biosensors are key factors leading to the possibility of portable integrated biomedical system, which play an important role in clinical medicine life sciences. Random lasers with simple structures provide opportunities for detecting biomolecules. Here, low-cost on fiber facet label-free biomolecules demonstrated based a plasmonic random laser. The laser is achieved resorting self-assembled scattering structure Ag nanoparticles polymer film facet. Refractive index...
Abstract Toward a higher degree of secure communication, great efforts have been made to develop encryption and anticounterfeiting strategies. In particular, optical with high complexity has become one the most significant approaches. To strengthen information security, concept spectral approach is proposed based on selectively visualized modes in random lasers. By coupling external whispering gallery mode cavity, hidden localized lasing special multiple‐peaks spectra are selected from...
Abstract Patterning of luminescent nanomaterials is critical in the fields display and information encryption, inkjet printing technology have shown remarkable significance with advantage fast, large‐scalable integrative. However, nanoparticle deposits high‐resolution well controlled morphology from nonpolar solvent droplets still challenging. Herein, a facile approach modulated nanoparticles self‐assembly patterns driven by shrinkage droplet inner solutal convection proposed. Through...
Neuromorphic computing can simulate brain function and is a pivotal element in next-generation computing, providing potential solution to the limitations brought by von Neumann bottleneck. Optoelectronic synaptic devices are highly promising tools for simulating biomimetic nervous systems. In this study, we developed an optoelectronic neuromorphic device with transistor structure constructed using ferroelectric CuInP2S6. Essential behaviors observed response light electrical stimuli. The...
Green-emitting polymer lasers based one- and two-dimensional distributed feedback (DFB) mechanisms are achieved through direct writing by interference ablation. The semiconductor material is removed at the bright fringes as spin-coated film exposed to pattern of a single UV laser pulse, producing 1D DFB structures light-emitting polymer. Multiple exposing processes enable fabrication 2D structures, proving this be simple flexible technique for realization variety organic schemes. Detailed...
A 3D surface‐enhanced Raman scattering (SERS) sensor is realized on the facet of an optical fiber. SERS radar configuration consisting a parabolic mirror and spherical body designed. The used to focus excitation laser light onto surface body, collect reflect scattered back into body's consists microscale trenches covered with gold nanogratings nanoparticles thick film thin SiO 2 spacer. Nanoscale printing technology, thermal evaporation, UV pulse irradiation are fabricate metalize mold...
Abstract Hybrid lead halide perovskites have made great strides in next-generation photovoltaic and optoelectronic devices. Random lasers based on perovskite materials been intensively investigated, but the miniaturization of random has not achieved up to now. Here, we report fabrication films deposited optical fiber facets using a dip-coating method. Under pumping conditions, lasing was observed with minimum threshold energy 32.3 μJ/cm 2 at ~550 nm; also, decreased increasing diameter...
Abstract Control coupling and synchronization of lasers has become increasingly attractive for their applications in spectroscopy, imaging, sensing, secret communication, optical networks. As complex microcavities emerge, more complicated light–matter interactions, along with the resulting distinct lasing emission behavior, is induced these hybrid microcavities. This review summarizes most important advances current deep insights into inherent relationship between microcavity geometries...
In situ self-assembly of semiconducting emitters into multilayer cracks is a significant solution-processing method to fabricate organic high-Q lasers. However, it still difficult realize from conventional conjugated polymers. Herein, we create the molecular super-hindrance-etching technology, based on π-functional nanopolymer PG-Cz, modulate applied in single-component random Massive interface are formed by promoting interchain disentanglement with super-steric hindrance effect...
It is reported experimentally that low-threshold random lasing in a weakly scattering disordered structure formed by speckles using holography achieved. shows the emission property of related directly to pulse duration pump laser. If pumped picosecond pulses, several spikes are observed emission. nanosecond laser, only single dominant peak appears. The wavelength tunability laser with change temperature has been demonstrated. corresponding physical analyses have also provided briefly.
Highly homogeneous surface-enhanced Raman scattering substrates were produced on the centimeter scale by annealing solution-processed gold nanoparticles into plasmonic nanoislands.
An optical sensor based on the coupling between plasmonic and photonic resonance modes in metallic crystals is investigated. Large-area consisting of periodically arranged gold nanostructures with dimensions down to sub-100 nm are fabricated using solution-processible nanoparticles combination interference lithography or ablation, which introduces a variety fabrication techniques for construction this kind device. Sensitivity response changes environmental refractive index enhanced through...
A red-green-blue plasmonic random laser is achieved in a multilayer structure, which fabricated by spin-coating three polymer solutions successively on silica substrate. Under optical pumping, strong amplification of the radiation can be observed due to localized surface plasmon resonance silver nanoparticles embedded structure. Red-green-blue lasing simultaneously obtained from sample based enhanced scattering strength nanoparticles. These results are useful for designing compact integrated sources.
Tunable multi-wavelength polymer lasers based on two-dimensional distributed feedback structures are fabricated a transparent flexible substrate using interference ablation.
A random fiber laser is achieved based on the plasmonic feedback mechanism, which constructed by first siphoning polymer solution doped with silver nanoparticles into a 300-μm capillary tube and then evaporating solvent. Strong amplification of radiation can be obtained employing variable gain region, waveguide scheme three-dimensional provided nanoparticles. Low-threshold directional lasing observed in fiber. This simple straightforward approach facilitates investigation lasers.
Red–green–blue polymer laser emission is achieved in a free-standing membrane device consisting of three distributed feedback cavities.