title: Thallium bromide iodide crystal acoustic anisotropy examination.
abstract: Thallium bromide iodide crystal also known as KRS-5 is the well known material used in far infrared radiation applications for optical windows and lenses fabrication. The main advantage of this material is the transparency in wide band of wavelengths from 0.53 to 50μm. Despite such advantages as transparency and large acousto-optic figure of merit values, KRS-5 is rarely used in acousto-optics. Nevertheless this material seems to be promising for far infrared acousto-optic applications. The acoustic and acousto-optic properties of KRS-5 needed for the full use in optoelectronics are not well understood to date. In this paper the detailed examination of thallium bromide iodide crystal acoustic properties is presented.
authors.affiliation: Physics Department, M.V. Lomonosov Moscow State University, GSP-2, Vorobevy Gory, 119991 Moscow, Russia. Electronic address: snmantsevich@yahoo.com.
authors.forename: S N
authors.initials: SN
authors.lastname: Mantsevich
keywords: Acoustic anisotropy; Acoustic beam collimation; Acoustic walk-off; Anisotropy coefficient; Slowness surface; Thallium bromide iodide