Title

Effect Of Ir Femtosecond Laser Irradiation On The Structure Of New Sulfo-Selenide Glasses

Keywords

Femtosecond laser irradiation; Germanium-based sulfide glass; Photo-expansion; Photo-sensitivity; Raman spectroscopy

Abstract

We report results of a systematic study to evaluate for the first time, the relationship between compositional variation and photo-sensitivity of new glasses in the Ge-Sb-S/Se system with varying ratios of chalcogen (S/Se), upon IR femstosecond laser exposure. It is shown that the photo-sensitivity of the glass depends on the glass composition and that IR femtosecond laser irradiation in this system results in near-surface photo-expansion. Glass structure modification as a function of S/Se ratio and the influence of laser dose has been characterized using micro-Raman spectroscopy and is correlated to the resulting photo-expansion. As compared to other widely studied binary chalcogenide glass systems, photo-expansion was found to vary with the Se content. Such modification opens the pathway towards the laser writing of photonic devices in the surface of the material. © 2006 Elsevier B.V. All rights reserved.

Publication Date

1-1-2007

Publication Title

Optical Materials

Volume

29

Issue

8

Number of Pages

1075-1083

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.optmat.2006.04.008

Socpus ID

33846940938 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33846940938

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