Theoretical research on period microstructure induced by femtosecond laser in transparent dielectric

Shuwei Fan; Yan Zhang

doi:10.1117/12.2074031

18 November 2014 Theoretical research on period microstructure induced by femtosecond laser in transparent dielectric

Shuwei Fan, Yan Zhang

Proceedings Volume 9269, Quantum and Nonlinear Optics III; 92691J (2014) https://doi.org/10.1117/12.2074031
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

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.

Citation Download Citation

Shuwei Fan and Yan Zhang "Theoretical research on period microstructure induced by femtosecond laser in transparent dielectric", Proc. SPIE 9269, Quantum and Nonlinear Optics III, 92691J (18 November 2014); https://doi.org/10.1117/12.2074031

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