Title
Bulk-film structural differences of chalcogenide glasses probed in situ by near-infrared waveguide Raman spectroscopy
Abbreviated Journal Title
Opt. Commun.
Keywords
optical materials; glasses; Raman spectroscopy; integrated optics; thin; films; FABRICATION; Optics
Abstract
Thin film devices based on chalcogenide glasses (ChGs) are attractive for integrated optics applications due to their good infrared transmission and high nonlinear Kerr effects. To reveal structural variations which impact physical properties depending on material processing and in-use laser conditions we employ waveguide Raman spectroscopy (WRS) in ChG thin films and fibers using excitation in the near-infrared (NIR). The Raman spectra reveal significant microstructural differences between fibers drawn from bulk As2S3 glasses and unannealed films in that the latter contain As4S4 molecular subunits, The high signal-to-noise ratio and the absence of undesired photoreactions make NIR WRS a versatile new approach to in situ characterization of infrared waveguide devices. (C) 2001 Elsevier Science B.V. All rights reserved.
Journal Title
Optics Communications
Volume
198
Issue/Number
1-3
Publication Date
1-1-2001
Document Type
Article
Language
English
First Page
125
Last Page
128
WOS Identifier
ISSN
0030-4018
Recommended Citation
"Bulk-film structural differences of chalcogenide glasses probed in situ by near-infrared waveguide Raman spectroscopy" (2001). Faculty Bibliography 2000s. 8206.
https://stars.library.ucf.edu/facultybib2000/8206