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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 4 — Feb. 15, 2011
  • pp: 534–536

Composition-dependent photosensitivity in As–S glasses induced by bandgap light: structural origin by Raman scattering

Spyros N. Yannopoulos, Fotis Kyriazis, and Ioannis P. Chochliouros  »View Author Affiliations


Optics Letters, Vol. 36, Issue 4, pp. 534-536 (2011)
http://dx.doi.org/10.1364/OL.36.000534


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Abstract

Massive photoinduced short- and medium-range structural changes (photopolymerization) in As–S glasses are induced by near-bandgap light and studied by Raman scattering. Structural changes involve bond restructuring in sulfur-rich nanodomains of these nanoscale-phase-separated glasses. The spectral dependence of the photopolymerization effect demonstrates that various wavelengths can be used to optically change the structure of As–S glasses. The immense structural changes are relevant to recent findings about the role of bandgap light illumination for fabricating channel waveguides in noncrystalline arsenic sulfides.

© 2011 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.4670) Materials : Optical materials
(300.6330) Spectroscopy : Spectroscopy, inelastic scattering including Raman
(160.5335) Materials : Photosensitive materials

ToC Category:
Spectroscopy

History
Original Manuscript: October 19, 2010
Revised Manuscript: December 15, 2010
Manuscript Accepted: December 20, 2010
Published: February 9, 2011

Citation
Spyros N. Yannopoulos, Fotis Kyriazis, and Ioannis P. Chochliouros, "Composition-dependent photosensitivity in As–S glasses induced by bandgap light: structural origin by Raman scattering," Opt. Lett. 36, 534-536 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-4-534


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