title: Raman gain measurements of thallium-tellurium oxide glasses.
abstract: Several different compositions of tellurium-thallium oxide glasses were fabricated and tested for their Raman gain performance. The addition of PbO to the glass matrix increased the surface optical damage threshold by 60-230%. The maximum material Raman gain coefficient experimentally obtained was (58 +/- 3) times higher than the peak Raman gain of a 3.18 mm thick Corning 7980-2F fused silica sample (Deltanu = 13.2 THz). The highest peak in the Raman gain spectrum of the tellurium-thallium glass is attributed to the presence of TeO3 and TeO3+1 structural units with thallium ions in the vicinity at a frequency shift near 21.3 THz.
authors.forename: Robert
authors.initials: R
authors.lastname: Stegeman
authors.forename: Clara
authors.initials: C
authors.lastname: Rivero
authors.forename: Kathleen
authors.initials: K
authors.lastname: Richardson
authors.forename: George
authors.initials: G
authors.lastname: Stegeman
authors.forename: Peter
authors.initials: P
authors.lastname: Delfyett
authors.forename: Yu
authors.initials: Y
authors.lastname: Guo
authors.forename: April
authors.initials: A
authors.lastname: Pope
authors.forename: Alfons
authors.initials: A
authors.lastname: Schulte
authors.forename: Thierry
authors.initials: T
authors.lastname: Cardinal
authors.forename: Philippe
authors.initials: P
authors.lastname: Thomas
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Champarnaud-Mesjard