文献类型：期刊文献

英文题名：Propagation properties of a generalized double-half inverse Gaussian hollow beam with a variable aperture radius

作者：Wang, Taofen Zhu, Kaicheng Zhou, Ying Zhang, Pengqin Zhu, Jie

第一作者：Wang, Taofen

通信作者：Zhu, J[1]|[14440901970e7c97ae94b]朱洁;

机构：[1]Hunan Univ Sci & Technol, Sch Phys, Xiangtan 411201, Peoples R China;[2]Guangzhou Coll Technol & Business, Sch Engn, Guangzhou 510850, Peoples R China;[3]Guizhou Inst Technol, Coll Sci, Guiyang 550003, Peoples R China;[4]Cent South Univ, Sch Phys & Elect, Changsha 410083, Peoples R China

第一机构：Hunan Univ Sci & Technol, Sch Phys, Xiangtan 411201, Peoples R China

通信机构：corresponding author), Guizhou Inst Technol, Coll Sci, Guiyang 550003, Peoples R China.|贵州理工学院理学院;贵州理工学院;

年份：2023

卷号：55

期号：9

外文期刊名：OPTICAL AND QUANTUM ELECTRONICS

收录：;EI(收录号：20232714347591);Scopus(收录号：2-s2.0-85163788513);WOS:【SCI-EXPANDED(收录号:WOS:001022408100012)】；

基金：This work was supported by Science and Technology Program of Guizhou Province, grant number [2020]1Y025, and by National Natural Science Foundation of China, grant number 62163008.

语种：英文

外文关键词：Dark hollow beams; Propagation properties; Aperture radius; Self-focusing

摘要：An extension of the double-half inverse Gaussian hollow beams (DHIGHBs) introduced by Liu has been proposed, in which the radius of the hard-edged aperture is variable and such a beam is termed as the variable aperture width double-half inverse Gaussian hollow beam (VarDHIGHB). Based on the paraxial propagation theory, the analytical expression of a VarDHIGHB propagating through the paraxial ABCD optical system is deduced. The intensity distribution of the optical field is simulated with different radius of the hard-edge aperture and different propagating distances through free space. The results demonstrate that such a novel beam exhibits complex self-focusing and self-defocusing behaviors with redistribution of the energy and forms a diffraction-free dark hollow pattern over a certain propagation distance range. Moreover, we confirm that the self-focusing distance and the size of the dark hollow region can be effectively controlled by modulating the initial spot size and the circular aperture radius.