title: High-resolution Brillouin gain spectroscopy in fused silica.
abstract: We report what is to our knowledge the first high-resolution Brillouin gain spectrum in a solid. Resonances corresponding to longitudinal (compressional) and transverse (shear) acoustic waves in fused silica are observed with good resolution and a high signal-to-noise ratio. Absolute gain coefficients, linewidths, and Brillouin frequency shifts are measured. The agreement with previously measured values is good.
authors.forename: G W
authors.initials: GW
authors.lastname: Faris
authors.forename: L E
authors.initials: LE
authors.lastname: Jusinski
authors.forename: M J
authors.initials: MJ
authors.lastname: Dyer
authors.forename: W K
authors.initials: WK
authors.lastname: Bischel
authors.forename: A P
authors.initials: AP
authors.lastname: Hickman