Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Numerical simulation of laser focusing properties inside birefringent crystal

Not Accessible

Your library or personal account may give you access

Abstract

The transmission properties of a focused laser inside anisotropic material are complex due to the birefringent effect, which has remarkable influence on the light distribution and frequency multiplication efficiency of crystals. Meanwhile, it will also affect the laser micromachining precision of birefringent materials with random polarization. In this study, ray tracing and diffraction integral methods were proposed to develop the mathematical model of a laser focused through an isotropic medium into a KDP crystal. Using these models, the focusing properties and 3D light intensity distribution of a focused laser inside a KDP crystal at different orientations were investigated. The research shows that the size and shape of the E-ray focus will distort, and its peak power density decreases rapidly with the decrease of the angle between the optical axis and the crystal surface. Meanwhile, the focal position of the E-ray will also move with the change of optical axis orientation. Based on the simulated results, an approximate 3D light intensity equation of a laser focused into birefringent material was also proposed, which is in good agreement with the theoretical analysis. The related simulated results have an important engineering value for nonlinear optics and laser processing of birefringent materials.

© 2016 Optical Society of America

Full Article  |  PDF Article
More Like This
Laser-writing inside uniaxially birefringent crystals: fine morphology of ultrashort pulse-induced changes in lithium niobate

P. Karpinski, V. Shvedov, W. Krolikowski, and C. Hnatovsky
Opt. Express 24(7) 7456-7476 (2016)

Research on temperature field of KDP crystal under ion beam cleaning

Furen Li, Xuhui Xie, Guipeng Tie, Hao Hu, and Lin Zhou
Appl. Opt. 55(18) 4888-4894 (2016)

Investigation of the laser-induced surface damage of KDP crystal by explosion simulation

Shengfei Wang, Jian Wang, Xiangyang Lei, Zhichao Liu, Jianfeng Zhang, and Qiao Xu
Opt. Express 27(11) 15142-15158 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (32)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved