Laser-induced structural changes in pure GeO2 glasses

被引：11

作者：

Bressel, Lena ^{[1
]}

de Ligny, Dominique ^{[1
]}

Sonneville, Camille ^{[1
]}

Martinez-Andrieux, Valerie ^{[1
]}

Juodkazis, Saulius ^{[2
]}

机构：

[1] Univ Lyon 1, Lab Physicochim Mat Luminescents, UMR 5620, F-69622 Villeurbanne, France

[2] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2011年 / 357卷 / 14期

关键词：

Phase transitions; Laser nano-fabrication; Shock waves; Glass; Extreme conditions; COORDINATION CHANGE; HIGH-PRESSURE; SHOCK-WAVE; SIO2; SPECTROSCOPY; CRYSTALLINE; TRANSITIONS; PULSES; LIQUID;

D O I：

10.1016/j.jnoncrysol.2011.03.014

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on the characterization of structural modifications created by micro-explosions at the beam waist of a tightly focused femtosecond laser pulse inside of GeO2 glass. Micro-Raman scattering revealed the presence of structurally strongly modified regions at and around the irradiated sites. For separations of 5 mu m between adjacent irradiated sites structural modifications due to a pressure increase are observed, whereas smaller spacings of 2 mu m lead to thermal effects and crystallization. The mechanisms and the interplay of pressure and temperature effects are discussed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2637 / 2640

页数：4

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