Systematic Control of Structural Changes in GeO2 Glass Induced by Femtosecond Laser Direct Writing

被引：51

作者：

Asai, Taiga ^{[1
]}

Shimotsuma, Yasuhiko ^{[1
]}

Kurita, Torataro ^{[1
]}

Murata, Atsushi ^{[1
]}

Kubota, Sho ^{[1
]}

Sakakura, Masaaki ^{[1
]}

Miura, Kiyotaka ^{[1
]}

Brisset, Francois ^{[2
]}

Poumellec, Bertrand ^{[2
]}

Lancry, Matthieu ^{[2
]}

机构：

[1] Kyoto Univ, Dept Chem Mat, Kyoto 6158510, Japan

[2] Univ Paris 11, ICMMO, UMR CNRS PSUD 8182, F-91405 Orsay, France

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2015年 / 98卷 / 05期

关键词：

FUSED-SILICA; TRANSPARENT MATERIALS; FORM BIREFRINGENCE; WAVE-GUIDES; NANOGRATINGS; PULSE; MANIPULATION; IRRADIATION; DENSITY; DRIVEN;

D O I：

10.1111/jace.13482

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 the structural changes inside germania glass induced by femtosecond laser pulses. Inspection by polarization microscopy and secondary electron microscopy indicate that the periodic nanostructures consist of oxygen defects such as ODCs (oxygen deficient centers) and NBOHCs (nonbridging oxygen hole centers) for laser pulse energy less than 0.2 mu J. However, the glass network was dissociated and O-2 molecules were generated for laser pulse energy greater than 0.4 lJ. Two different structural changes, form-birefringence and dissociation, were induced in GeO2 glass, depending on the laser pulse energy. The form-birefringence exhibited by the nanogratings in GeO2 glass is larger than that in SiO2 glass for pulse energy less than 0.2 mu J, as the density of nanovoids enclosed by ODCs in GeO2 glass is higher than that in SiO2 glass. Arrhenius plots of the phase retardation caused by the nanogratings in GeO2 and SiO2 indicate that the oxygen defects are relaxed at a temperature 100 degrees C above the glass-transition temperature.

引用

页码：1471 / 1477

页数：7

共 44 条

[1] Optically produced arrays of planar nanostructures inside fused silica [J].