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Proceedings Paper

Waveguides in chalcogenide glasses produced by a train of femtosecond laser pulses
Author(s): Oleg M. Efimov; Leonid B. Glebov; S. H. Park; Kathleen A. Richardson; Eric W. Van Stryland; Thierry Cardinal; M. Couzi; J.-L. Bruneel
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Paper Abstract

Waveguide writing using a train of femtosecond laser pulses at 850 nm, in the transparent spectral region of bulk As40S60 glasses is reported. Wave guides were written by translating the glass sample along the optical axis of a strongly focused laser beam. Refractive index variation, linear absorption spectra, and Raman spectra of the exposed region were measured. The chemical mechanism responsible for the index variation has been correlated to a breakage of the glass' As-S bonds and formation of As-As and S-S bonds and increase of the disorder of the glass network. The nonlinear optical origin leading to this phenomenon has been shown, and possible mechanisms are discussed.

Paper Details

Date Published: 12 April 2001
PDF: 10 pages
Proc. SPIE 4347, Laser-Induced Damage in Optical Materials: 2000, (12 April 2001); doi: 10.1117/12.425039
Show Author Affiliations
Oleg M. Efimov, CREOL/Univ. of Central Florida (United States)
Leonid B. Glebov, CREOL/Univ. of Central Florida (United States)
S. H. Park, CREOL/Univ. of Central Florida (United States)
Kathleen A. Richardson, CREOL/Univ. of Central Florida (United States)
Eric W. Van Stryland, CREOL/Univ. of Central Florida (United States)
Thierry Cardinal, Univ. Bordeaux I (France)
M. Couzi, Univ. Bordeaux I (France)
J.-L. Bruneel, Univ. Bordeaux I (France)


Published in SPIE Proceedings Vol. 4347:
Laser-Induced Damage in Optical Materials: 2000
Gregory J. Exarhos; Arthur H. Guenther; Mark R. Kozlowski; Keith L. Lewis; M. J. Soileau, Editor(s)

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