物理
高斯分布
梁(结构)
高斯光束
反射(计算机编程)
薛定谔方程
波数
光束
光学
经典力学
量子力学
计算机科学
程序设计语言
作者
Ru Gao,Teng Guo,Shumin Ren,Pengxiang Wang,Yan Xiao
标识
DOI:10.1088/1361-6455/ac6554
摘要
Abstract The dynamics of a Pearcey–Gaussian (PG) beam with Gaussian potential in the fractional Schrödinger equation (FSE) are investigated. In free space, varying the Lévy index offers a convenient way to control the splitting and bending angle of the beam. In the presence of Gaussian potential, with increasing propagation distance, the process is repeated in a breath-like motion. The periodicity also can be changed by adjusting the potential parameter and incident beam arguments, such as potential height, potential width and transverse wavenumber. The transmission and reflection of the beam can also be controlled by varying the potential parameters. Moreover, when a symmetrical Gaussian potential barrier is selected, total reflection is more likely to occur. These unique characteristics demonstrate the possibility of controlling the dynamics of PG beams with the FSE system.
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