Open AccessStudy of the photosensitivity of GeS binary glasses to 800nm femtosecond pulses
Author(s) -
Sandra Helena Messaddeq,
Jean-Philippe Bérubé,
Martin Bernier,
И. В. Скрипачев,
Réal Vallée,
Y. Messaddeq
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.002824
Subject(s) - photosensitivity , femtosecond , optics , materials science , refractive index , binary number , fabrication , optoelectronics , laser , physics , medicine , arithmetic , mathematics , alternative medicine , pathology
We present the first study of the photosensitivity of GeS binary glasses in response to irradiation to femtosecond pulses at 800 nm. A maximum positive refractive index change of 3.5x10(-3) is demonstrated with the possibility to control the waveguide diameter from ~8 to ~50 µm by adjusting the input pulse energy. It is also demonstrated that under different exposure conditions, a maximum negative index change of -7.5x10(-3) can be reached. The present results clearly illustrate the potential of this family of glasses for the fabrication of mid-infrared waveguides.