皮尔斯-高斯光束在分数阶Schrödinger光折变介质中的可控传播

IF 0.7 4区 物理与天体物理 Q4 OPTICS Optica Applicata Pub Date : 2022-01-01 DOI:10.37190/oa220412
Teng Guo, Ru Gao, Shumin Ren, Pengxiang Wang, Yan Xiao
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引用次数: 1

摘要

以分数阶Schrödinger方程为理论模型,研究了皮尔斯-高斯光束在光折变介质中的演化行为。结果表明,当非线性效应和衍射效应相互平衡时,会产生呼吸孤子。非线性系数、lsamvy指数和光束振幅影响孤子的呼吸周期和最大峰值强度。在一定范围内,孤子的呼吸周期随着非线性系数和lsamvy指数的增大而减小。但随着光束振幅的增大,孤子的呼吸周期和最大峰值强度增大。在光折变效应下,由于皮尔斯光束的双向自加速特性,形成的孤子将垂直传播。这些特性可用于操纵光束,并在光开关、等离子体通道、粒子操纵等方面具有潜在的应用。
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Controllable propagation of Pearcey–Gaussian beamsin photorefractive media with fractional Schrödinger equation
Taking the fractional Schrödinger equation as the theoretical model, the evolution behavior of the Pearcey–Gaussian beam in the photorefractive medium is studied. The results show that breathing solitons are generated when the nonlinear effect and the diffraction effect are balanced with each other. Nonlinear coefficients, Lévy index and beams amplitude affect breathing period of the soliton and maximum peak intensity. Within a certain range, the breathing period of the soliton decreases with the increase of the nonlinear coefficient and the Lévy index. However when the beams amplitude increases, the breathing period and the maximum peak intensity of the soliton increase. Under the photorefractive effect, due to the bidirectional self-acceleration property of the Pearcey beam, the solitons formed will propagate vertically. These properties can be used to manipulate the beam and have potential applications in optical switching, plasma channeling, particle manipulation, etc.
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来源期刊
Optica Applicata
Optica Applicata 物理-光学
CiteScore
1.00
自引率
16.70%
发文量
21
审稿时长
4 months
期刊介绍: Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.
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