Open AccessTheoretical analysis of fs-laser induced micro-explosion in fused silica
Author(s) -
XU Shi-zhen,
Tianqing Jia,
Sun Hai-Yi,
Xiaoxi Li,
Cheng Zhaogu,
Feng Dong-Hai,
Chengbin Li,
Zhizhan Xu
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4146
Subject(s) - femtosecond , materials science , laser , diffusion , deposition (geology) , electron , dielectric , energy (signal processing) , atomic physics , optics , molecular physics , optoelectronics , physics , nuclear physics , thermodynamics , paleontology , quantum mechanics , sediment , biology
Based on the avalanche model, the evolution of femtosecond laser induced micro-e xplosion in fused silica was investigated. The microscopic processes, including the production of conduction band electron (CBE), laser energy deposition, CBE a nd energy diffusion were solved by a finite element method in two-dimensional cy lindrical coordinates. The accumulated net charge and the electrostatic field we re also calculated. The results indicate that the CBE and energy diffusions play an important role in the micro-explosion in dielectrics.