Title

Non-Linear Optical Properties Of Chalcogenide Glasses In The System As-S-Se

Abstract

We report results of a systematic study examining the relationship of bond type and concentration to the linear and non-linear optical properties of As-S-Se glasses. The effects of iso-structural substitution of Se for S and the resulting impact on structure and the non-linear refractive index, n2, are discussed. Non-linear optical properties of As-S-Se chalcogenide glasses were measured by the Z-scan technique at 1.6 μm, and measured n2 up to 400 times the n2 for silica were observed. Such large n2 for glasses with small As/(S+Se) molar ratios is correlated with the presence of covalent, homopolar Se-Se bonds in the glass structure as identified by Raman spectroscopy, and can not be attributed to any red shift in the absorption edge or to a resonant effect. The suitability of these glasses for planar waveguides based on such nonlinear properties is thus confirmed, and recent fabrication results are described.

Publication Date

10-2-1999

Publication Title

Journal of Non-Crystalline Solids

Volume

256

Number of Pages

353-360

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0022-3093(99)00524-4

Socpus ID

0033358735 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0033358735

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