Analytic expression and propagation properties of hollow Gaussian beams for the off-waist incident case in strongly nonlocal media

作者：Dai, Zhiping; Ling, Xiaohui; Tang, Shiqing^*

来源：Results in Physics, 2018, 9: 215-217.

DOI：10.1016/j.rinp.2018.02.029

• Hollow Gaussian beam
• Strongly nonlocal media
• Propagation property
• Off-waist incident case

In this paper, the propagation properties of hollow Gaussian beams (HGBs) are discussed in detail when they are off-waist incident in strongly nonlocal media. A set of mathematic expressions are given to describe the evolutions of the beam intensity, the beam width, and the real beam radius. Numerical simulations are carried out to illustrate these propagation properties depended on the off-waist incidence. It is found that a HGB always periodically transforms its transverse patterns during propagation. Accordingly, the beam width and the real beam radius are also periodic during propagation.

• 出版日期2018-6
• 单位衡阳师范学院