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Proceedings Paper

Structural modification of gallium lanthanum sulfide glass induced by ultrafast laser inscription
Author(s): Romina Diener; Gloria Tabacchi; Stefan Nolte; Stefano Minardi
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Paper Abstract

We present a preliminary experimental chemical-physical characterisation of the structural modification of Gallium Lanthanum Sulfide (GLS) glass occurring during ultrafast laser inscription of waveguides in thermal regime. Our measurements with a micro-Raman spectrograph confirmed previous reports of negligible chemical modification of the irradiated glass. Additionally, the observed onset of significant long-range stress patterns surrounding the irradiated regions indicate that GLS is subject to an irradiation-induced densification of the glass network. We discuss the consequences of these observations for the amelioration of the laser inscription techniques in chalcogenide glasses and, potentially, for the understanding of their microscopic structure.

Paper Details

Date Published: 17 February 2017
PDF: 6 pages
Proc. SPIE 10092, Laser-based Micro- and Nanoprocessing XI, 100920D (17 February 2017); doi: 10.1117/12.2250591
Show Author Affiliations
Romina Diener, Friedrich-Schiller-Univ. Jena (Germany)
Gloria Tabacchi, Univ. degli Studi dell'Insubria (Italy)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Stefano Minardi, Friedrich-Schiller-Univ. Jena (Germany)
Leibnitz-Institut für Astrophysik (Germany)

Published in SPIE Proceedings Vol. 10092:
Laser-based Micro- and Nanoprocessing XI
Udo Klotzbach; Kunihiko Washio; Rainer Kling, Editor(s)

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