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Proceedings Paper

Theoretical research on period microstructure induced by femtosecond laser in transparent dielectric
Author(s): Shuwei Fan; Yan Zhang
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Paper Abstract

In this paper, we do some research on the interior period microstructure of transparent materials induced by a femtosecond laser of 800-nm wavelength. By adopting a nonlinear propagation physical model of femtosecond laser pulses and considering the spherical aberration effect(SA), we analyze the influence of nonlinear effects such an self-focusing, GDV, MPA, plasma defocusing and interface aberration on femtosecond laser propagation in transparent materials. Meantime, in the case with nonlinear effects and interface aberration, we research the influence of fs laser power, pulse width, numerical aperture and focusing depth on period microvoid. Simultaneously, compared with simulating results in different focusing lens numerical aperture, we find that big numerical aperature and deep focusing more easily produced period voids.

Paper Details

Date Published: 18 November 2014
PDF: 7 pages
Proc. SPIE 9269, Quantum and Nonlinear Optics III, 92691J (18 November 2014); doi: 10.1117/12.2074031
Show Author Affiliations
Shuwei Fan, Xi'an Jiaotong Univ. (China)
Yan Zhang, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 9269:
Quantum and Nonlinear Optics III
Qihuang Gong; Guang-Can Guo; Byoung Seung Ham, Editor(s)

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