A5100405382- Solid State Laser Technologies
- Advanced Fiber Laser Technologies
- Laser Design and Applications
- Spectroscopy and Laser Applications
- Atomic and Subatomic Physics Research
- Laser-Matter Interactions and Applications
- Photorefractive and Nonlinear Optics
- Laser Material Processing Techniques
- Quantum optics and atomic interactions
- Optical Systems and Laser Technology
- Cold Atom Physics and Bose-Einstein Condensates
- Nonlinear Optical Materials Studies
- Photochemistry and Electron Transfer Studies
- Orbital Angular Momentum in Optics
- Solid-state spectroscopy and crystallography
- Porphyrin and Phthalocyanine Chemistry
- Ocular and Laser Science Research
- 2D Materials and Applications
- Advanced Optical Sensing Technologies
- Nonlinear Optical Materials Research
- Terahertz technology and applications
- Laser-induced spectroscopy and plasma
- MXene and MAX Phase Materials
- Diamond and Carbon-based Materials Research
- Photonic and Optical Devices
Changchun Institute of Optics, Fine Mechanics and Physics
2016-2025
Chinese Academy of Sciences
2016-2025
Optica
2019
Chinese Academy of Engineering
2018
Yanshan University
2013
Jiangxi Normal University
2011
Centre National de la Recherche Scientifique
2008
Université d'Angers
2008
In this review, we introduce the current state of art growth technology pure, lightly doped, and heavily doped (solid solution) nonlinear gallium selenide (GaSe) crystals that are able to generate broadband emission from near infrared (IR) (0.8 μm) through mid- far-IR (terahertz (THz)) ranges further into millimeter wave (5.64 mm) range. For first time, show appropriate doping is an efficient method controlling a range physical properties GaSe responsible for frequency conversion efficiency...
Investigations of the ground and excited states absorption are very important for development advanced optical limiters. Linear response time-dependent density-functional theory (LR-TDDFT) has become popular calculating spectra molecules in their state. However, calculation state turns out to be much more complicated. In present paper, it is shown that transition dipole moments between two can well-estimated based on auxiliary excited-state wavefunctions extracted from LR-TDDFT calculation....
A 3–5 μm mid-infrared band is a good window for atmospheric transmission. It has the advantages of high contrast and strong penetration under humidity conditions. Therefore, it important applications in fields laser medicine, radar, environmental monitoring, remote sensing, molecular spectroscopy, industrial processing, space communication photoelectric confrontation. In this paper, application background summarized. The ways to realize output are described by optical parametric oscillation,...
Van der Waals heterostructures composed of atomically thin two-dimensional (2D) materials and three-dimensional (3D) provide a multidimensional material integration strategy, which combines with different characteristics leading to wider degree freedom than single component, offer way for developing electronic optoelectronic devices multifunctionalities, such as high-frequency devices, photodetectors, valley-spin so on. This report demonstrates the direct growth large-area monolayer MoS2...
Laser-spot-location detection technology based on photodetectors is widely used in the aerospace, medical, military and communication fields. However, most of current research focuses continuous laser visible near-infrared bands, real-time high-precision position a long-wave infrared pulsed lacking. In this paper, spot-position system four-quadrant detector designed for 10.6 μm CO2-driven extreme ultraviolet light source, second-order extended error compensation algorithm Gaussian-spot model...
In our work, a multi-layer topological insulator (TI) Bi2Se3 thin film was prepared by the chemical vapor deposition method (CVD), and its saturable absorption damage characteristics were experimentally studied. The results show that when wavelength is 1064 nm, parameters of TI: film, including modulation depth αs, non-saturable loss αns, saturation power intensity Isat, increase with in thickness, threshold inversely proportional to thickness. thicker layer, lower threshold. Among them, αs...
A tunable circularly polarized distributed feedback (DFB) laser based on reflection grating configuration was realized in a solution of 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran (DCM) doped methanol.Chiral photonic DFB structures with bandgap were generated by controlling the state polarization two interfering pump beams.The dual-peak lasing emission spectrum indicates that periodic chiral is affected combination modulations gain and refractive index.
By introducing the thermal entangled state representation, we investigate time evolution of distribution functions in dissipative channels by bridging relation between initial function and any function. We find that most them are expressed as such integrations over Laguerre—Gaussian Furthermore, applications, derive photon-counting distribution, R-function characteristic nonclassicality depth.
High quality monolayer MoS<sub>2</sub> with greatly improved optical and electrical performances can be directly grown by pretreating the growth SiO<sub>2</sub>/Si substrates sulfur vapor.
Employing a fiber-coupled diode-laser with center wavelength of 852.25 nm and line width 0.17 nm, experimental investigation on diode-end-pumped cesium (Cs) vapor laser stably operated at continuous-wave (CW) pulse regime is carried out. A 5 mm long cell filled 60 kPa helium 20 ethane used as medium. Using an output coupler reflectivity 48.79%, 1.26 W 894.57 CW obtained incident pump power 4.76 W, corresponding optical-optical efficiency 26.8% slope-efficiency 28.8%, respectively. The...
The laser–produced plasma extreme ultraviolet (LPP–EUV) source is the sole light currently available for commercial EUVL (extreme lithography) machines. parameters, such as electron temperature and density, affect conversion efficiency (CE) of radiation other critical parameters LPP–EUV directly. In this paper, optical emission spectroscopy (OES) was employed to investigate time–resolved generated by an Nd:YAG laser irradiation on a planar tin target. Assuming that satisfies local...
A high power repetitive spark-pin UV-preionized TEA CO2 laser system is presented. The discharge for generating pulses controlled by a rotary spark switch and voltage pulsed trigger. Uniform glow between two symmetrical Chang-electrodes realized using an auto-inversion circuit. couple of axial-flow fans with the maximum wind speed 80 m/s are used gas exchange electrodes. At operation, average output 10.4 kW 10.6 μm obtained at 300 Hz, electro-optical conversion efficiency 15.6%. single more...
Tunable mid-infrared lasers are widely used in laser spectroscopy, gas sensing and many other related areas. In order to solve heat dissipation problems improve the environmental temperature adaptability of solid-state sources, a tunable all-fiber pumped optical parametric oscillator (OPO) was established, compact thermal control system based on thermoelectric coolers, an automatic circuit, cooling fins, fans pipes integrated designed for laser. This is compact, light air-cooling which...