title: Study of the photosensitivity of GeS binary glasses to 800 nm femtosecond pulses.
abstract: 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.
authors.affiliation: Centre d’optique, photonique et laser (COPL), Université Laval, Québec G1V 0A6, Canada. Sandra.Messaddeq@copl.ulaval.ca
authors.forename: S H
authors.initials: SH
authors.lastname: Messaddeq
authors.forename: J P
authors.initials: JP
authors.lastname: Bérubé
authors.forename: M
authors.initials: M
authors.lastname: Bernier
authors.forename: I
authors.initials: I
authors.lastname: Skripachev
authors.forename: R
authors.initials: R
authors.lastname: Vallée
authors.forename: Y
authors.initials: Y
authors.lastname: Messaddeq
mesh_terms: D004307:Dose-Response Relationship, Radiation; D005857:Germanium / Q000737:chemistry* / Q000528:radiation effects*; D005898:Glass / Q000737:chemistry* / Q000528:radiation effects*; D007834:Lasers; D008027:Light; D008422:Materials Testing; D012825:Silicon / Q000737:chemistry* / Q000528:radiation effects*
chemical_list: D005857:Germanium; D012825:Silicon