2004/07/01 by Kazuhiko Ogusu, Hongpu Li, Michihiko Kitao · 1 citation
Materials Science · Physics and Astronomy · #Glass properties and applications #Optical and Acousto-Optic Technologies #Phase-change materials and chalcogenides
paper · doi:10.1364/josab.21.001302
openalex publication_date 2004/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
We derived the relation between a figure of merit, M1, for the diffraction efficiency of acousto-optical devices and the Brillouin-gain coefficient, gB. We then estimated the values of gB and the phonon lifetime for typical As2S3 and As2Se3 chalcogenide glasses from known acousto-optical parameters. We found that the magnitude of gB for these two glasses is greater than 20 times that of fused silica.