Dynamics of femtosecond laser induced voidlike structures in fused silica

被引：67

作者：

Mermillod-Blondin, A. ^{[1
,2
]}

Bonse, J. ^{[2
]}

Rosenfeld, A. ^{[2
]}

Hertel, I. V. ^{[2
,5
]}

Meshcheryakov, Yu. P. ^{[3
]}

Bulgakova, N. M. ^{[4
]}

Audouard, E. ^{[1
]}

Stoian, R. ^{[1
]}

机构：

[1] Univ St Etienne, CNRS, UMR 5516, Lab Hubert Curien, F-42000 St Etienne, France

[2] Max Born Inst Nichtlineare Opt & Kurzzeitsperktro, D-12489 Berlin, Germany

[3] MA Lavrentyev Hydrodynam Inst, Design & Technol Branch, Novosibirsk 630090, Russia

[4] SB RAS, Inst Thermophys, Novosibirsk 630090, Russia

[5] Free Univ Berlin, Dept Phys, D-1000 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 04期

关键词：

high-speed optical techniques; laser beam effects; refractive index; shock waves; silicon compounds; voids (solid); TIME; GLASS;

D O I：

10.1063/1.3070522

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Focused ultrafast laser irradiation of fused silica usually induces a spatially modulated refractive index variation in the bulk material. Strong energy concentration leads to the localized formation of a lower-density cavitylike depressed structure surrounded by compacted matter. We report on applying time-resolved phase contrast microscopy to investigate the timescale of the void formation. We indicate a temporal behavior consistent with shock wave generation and subsequent rarefaction.

引用

页数：3

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