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

Wang Taofen; Zhu Kaicheng; Zhou YingZhang PengqinZhu Jie

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

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

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Abstract 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.

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来源
《Optical and Quantum Electronics》 |2023年第9期|共5页
作者
Wang Taofen; Zhu Kaicheng; Zhou YingZhang PengqinZhu Jie;
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作者单位

Hunan University of Science and Technology;

Guangzhou College of Technology and Business;

Guizhou Institute of Technology;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Dark hollow beams; Propagation properties; Aperture radius; Self-focusing;

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

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