A5003408717- Advanced Fiber Laser Technologies
- Nonlinear Photonic Systems
- Photorefractive and Nonlinear Optics
- Orbital Angular Momentum in Optics
- Optical and Acousto-Optic Technologies
- Laser-Matter Interactions and Applications
- Gyrotron and Vacuum Electronics Research
- Quantum Information and Cryptography
- Photonic and Optical Devices
- Laser Material Processing Techniques
- Nonlinear Optical Materials Studies
- Nonlinear Waves and Solitons
- Terahertz technology and applications
- Particle Accelerators and Free-Electron Lasers
- Solid State Laser Technologies
- Quantum Mechanics and Applications
- Quantum optics and atomic interactions
- Quantum Computing Algorithms and Architecture
- Photonic Crystals and Applications
- Bamboo properties and applications
- Optical Polarization and Ellipsometry
- Gas Sensing Nanomaterials and Sensors
- Laser-Plasma Interactions and Diagnostics
- Photonic Crystal and Fiber Optics
- Phase-change materials and chalcogenides
Guangxi University of Science and Technology
2024
Weinan Normal University
2019-2021
University of Chinese Academy of Sciences
2013-2018
Xijing University
2015-2017
National Time Service Center
2014
Shaanxi Normal University
2014
Xi'an Institute of Optics and Precision Mechanics
2009-2013
Sinopec (China)
2009-2010
Laser-induced self-organization of regular nanoscale layered patterns in fused silica is investigated using spectroscopy and microscopy methods, revealing a high presence stable broken oxygen bonds. Longitudinal traces are then generated by replicating static irradiation structures where the modulation can cover partially or completely photoinscribed traces. The resulting birefringence, observed anisotropic light scattering properties, capacity to write erase modulated be used designing bulk...
We investigate interactions between in-phase or out-of-phase Airy beams and nonlinear accelerating in photorefractive crystals by means of direct numerical simulations. Since self-accelerating possess infinite energy, we evaluated the propagation two shifted counter truncating oscillating tails. The results show that external bias electric field has a profound effect on dynamics solitons shed from beam. also found during beams, single solitons, soliton pairs, bound breathing were produced....
Symmetric embedded waveguides were fabricated in heavy metal oxide SF10 glass using slit-shaped infrared femtosecond laser writing the low-repetition frequency regime. The impact of parameters on waveguide formation transverse scheme was systemically studied. Results indicate that efficient can be inscribed a wide parameter space ranging from 500 fs to 1.5 ps pulse duration, 0.7-4.2 μJ energy, and 5 μm/s 640 scan speed pointing out robustness photoinscription process. refractive index...
Bamboo–timber composite columns hold significant promise as bio-based structural elements. However, research in this area remains limited, especially concerning modern buckling analysis methods that incorporate constitutive models of engineered bamboo and timber materials. This study aims to address gap by proposing a proof-of-concept analytical framework based on component-based strategy for analysis, utilising piecewise material the guide rail its strain-stage-based component split-up....
A waveguide with a circular transverse profile can be obtained by using slit beam shaping method. Applications about optical circuit chips in glass require cross-section two dimensions. Here we reported to realize fabrication of dimensions rotating the corresponding tangent line arc waveguide. The dependence on width was investigated experiment. difference between geometrical optics prediction and experimental result explained considering focal shift xy directions due diffraction effects.
We analyze and optimize the parameters of Type I spontaneous parametric down-conversion (SPDC) process in BiB<sub>3</sub>O<sub>6</sub> (BIBO) crystal directly from calculations. This can be used to construct a system generate ultrafast entangled photon pairs, which play an important role quantum communication, positioning, clock synchronization. Our work on problem makes it clear that optimal phase matching orientation SPDC is key mechanism BIBO way appears not have been appreciated before....
We present a straightforward method for the calculation of phase-matching conditions based on angle-dependent refractive index in biaxial crystals. Considering indices relying angular orientation wave vector and optical axis angle, we acquire numerical curves angles. then obtain effective nonlinear coefficient spontaneous parametric down conversion (SPDC) process BiB3O6 (BIBO) crystal, ascertain optimal directions types I II. Moreover, focus gradient pump emission near exact direction,...
We present the observation of incoherent anti-dark photovoltaic solitons in LiNbO3:Fe crystal. This new class soliton states involves bright on a background beam meeting κ > 1, where is ratio illumination constant to that beam. For < dark are generated. Furthermore, this novel type investigated experimentally by injecting coherent light and partially infinite extent. In case spatial coherence lower than threshold modulation instability, these results indicate can propagate stable fashion.
We theoretically investigate the effective nonlinear coefficient d eff of spontaneous parametric down-conversion (SPDC) process in biaxial crystal BiB 3 O 6 (BIBO). solve Fresnel equations collinear degenerate down-converted configuration, and get relations phase-matching angles. Considering double phase-matching, we compute angles with different wavelength. Furthermore, simplify expression out principal planes, numerically calculate it varying angle These results indicate that there are...
We investigate waveguides induced by dark photovoltaic solitons without background beam theoretically and experimentally in LiNbO 3 crystal. Based on sole charge carrier band-transport model, we numerically simulate the transmission equation with shooting method, find it single mode. Furthermore, utilize two probe beams detecting waveguide experiments: one is continuous wavelength of 632.8 nm; other femtosecond pulse 800 nm. Comparing set results, conclude that have basic mode only, while...
We investigate the nonequilibrium thermodynamics of a quenched XY spin chain with multi-spin interaction in transverse field. The analytical expressions both average work and relative entropy are obtained under different quenching parameters. influences system parameters on investigated. find that at finite temperature critical phenomenon induced by external field can be revealed properties thermodynamics. In addition, our results indicate used to detect existence strength nonequlibrium system.
We investigate theoretically the strong anisotropy in wave packet distribution of biphoton pairs generated via spontaneous parametric down-conversion (SPDC) process with biaxial crystals. From angle relationship crystals, we deduce function type I SPDC by considering longitudinal detuning under paraxial approximation. Taking BiB3O6 (BIBO) as an example, numerically simulate single-particle and coincidence distributions two observation planes optimum phase-matching scheme. In contrast to...