Open AccessCreation of Hollow-Gaussian Beam for Optical Trap by Dual-beam Nonliear Fabry-perot Interferometer
Author(s) -
Nguyễn Mạnh Thắng
Publication year - 2021
Publication title -
communications in physics/communications in physics
Language(s) - English
Resource type - Journals
eISSN - 2815-5947
pISSN - 0868-3166
DOI - 10.15625/0868-3166/2021/16029
Subject(s) - optics , m squared , interferometry , beam (structure) , fabry–pérot interferometer , gaussian beam , intensity (physics) , laser beam quality , signal beam , gaussian , physics , laser , signal (programming language) , beam diameter , materials science , laser beams , quantum mechanics , computer science , programming language
In this paper, a model of dual-beam nonlinear Fabry-Perot interferometer (DBNFPI) for creation laser hollow-Gaussian beam (HGB) is investigated. It includes a thin film of organic dye sandwiched between two optical mirrors, and irradiated by two signal and pump laser Gaussian beams. Based on the equation describing the output-input relation of intensities concerning pump intensity and the expression of the spatial intensity distribution of output signal beam (OSB), the range of pump intensity and collection of designed parameters are numerically calculated and discussed for HGB creation. These results give us the opportunity to use DBNFPI for optical trap of low-index dielectric particles.