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Fabrication and characterization of femtosecond laser induced microstructures in chalcohalide glasses

X. ZHENG1,2,* , H. TAO1, C. LIN1, X. ZHAO1, G. GADRET2, J.-C. JULES2, F. SMEKTALA2

Affiliation

  1. Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology), Ministry of Education, Luoshi Road 122, Hongshan District, Wuhan, Hubei 430070, P.R. China
  2. ICB Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 CNRS-Université de Bourgogne, Av. A. Savary, 21078 Dijon, France

Abstract

We have discussed the structural changes induced in Ga-containing GeS2 based chalcohalide bulk glasses (ChGs) by a 200fs, 780nm, and 76MHz femtosecond laser (fs-laser) irradiation. As a result, various microstructures include waveguide lines were created in 80GeS2·10Ga2S3·10BaCl2 and 70GeS2·15Ga2S3·15AgI glasses under various conditions of femtosecond laser irradiation. The refractive indices of the modified glasses have decreased compared with the as-prepared glasses. Using micro-Raman scattering, we demonstrate that the variation of refractive indices were directly linked to photoinduced structural changes in the glass network..

Keywords

Chalcohalide glasses; Femtosecond laser irradiation; Waveguide; Micro-Raman scattering.

Submitted at: Feb. 21, 2011
Accepted at: March 16, 2011

Citation

X. ZHENG, H. TAO, C. LIN, X. ZHAO, G. GADRET, J.-C. JULES, F. SMEKTALA, Fabrication and characterization of femtosecond laser induced microstructures in chalcohalide glasses, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 3, pp. 173-177 (2011)