Morphology of femtosecond laser modification of bulk dielectrics

被引：35

作者：

Popov, K. I. ^{[1
]}

McElcheran, C. ^{[1
]}

Briggs, K. ^{[1
]}

Mack, S. ^{[1
]}

Ramunno, L. ^{[1
]}

机构：

[1] Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 01期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

TRANSPARENT MATERIALS; MEDIA;

D O I：

10.1364/OE.19.000271

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using 3D Finite-Difference-Time-Domain simulations, we study the morphology of the laser-created damage inside fused silica. Among the competing effects limiting the intensity in the dielectric, we find the most important is the pulse defocusing by the plasma lens, partially balanced by the Kerr effect. Less important are collisional energy dissipation and laser depletion by multi-photon absorption. We also found that the profile of generated plasma is asymmetrical in the transverse cross-section, with the plasma extended along the direction perpendicular to the laser polarization. (C) 2010 Optical Society of America

引用

页码：271 / 282

页数：12

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