Reflection of Plane Acoustic Waves for an Oblique Incidence on a Tellurium Dioxide Crystal Face

Abstract

This paper describes the phenomenology of the reflection of acoustic body waves in an acoustooptical paratellurite crystal in the case of arbitrary elastic wave incidence on a free interface between the crystal and vacuum. The analysis is performed at arbitrary angles of incidence of acoustic waves in the XOY plane of the material. Anomalous variants of acoustic wave reflection are considered, which fundamentally differ from the known ones and for which the transformation of incident elastic wave energy into reflected wave energy is studied. In the case of oblique incidence, cases of strict reflection of a wave towards the incident wave with an energy conversion efficiency close to 100% are noted.