Nanoindentation studies on waveguides inscribed in chalcogenide glasses using ultrafast laser

被引：10

作者：

Sabapathy, Tamilarasan ^{[1
]}

Kiran, M. S. R. N. ^{[2
]}

Ayiriveetil, Arunbabu ^{[1
]}

Kar, Ajoy K. ^{[3
]}

Ramamurty, U. ^{[2
]}

Asokan, Sundarrajan ^{[1
,4
]}

机构：

[1] Indian Inst Sci, Dept Instrumentat & Appl Phys, Bangalore 560012, Karnataka, India

[2] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India

[3] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[4] Indian Inst Sci, Appl Photon Initiat, Bangalore 560012, Karnataka, India

来源：

OPTICAL MATERIALS EXPRESS | 2013年 / 3卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

MECHANICAL-PROPERTIES; ACCUMULATION; TRANSITION; FILMS;

D O I：

10.1364/OME.3.000684

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optical straight waveguides are inscribed in GeGaS and GeGaSSb glasses using a high repetition-rate sub-picosecond laser. The mechanical properties of the glasses in the inscribed regions, which have undergone photo induced changes, have been evaluated by using the nanoindentation technique. Results show that the hardness and elastic modulus of the photo-modified glasses are significantly lower as compared to the other locations in the waveguide, which tend to be similar to those of the unexposed areas. The observed mechanical effects are found to correlate well with the optical properties of the waveguides. Further, based on the results, the minimum threshold values of hardness and elastic modulus for the particular propagation mode of the waveguide (single or multi), has been established. (C) 2013 Optical Society of America

引用

页码：684 / 690

页数：7

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