Abstract:
Geometrical conditions under which mode conversion occurs in a crystal near total internal reflection of an acoustic beam are found. In this case, the entire energy of an incident pump wave is spent on the excitation of a narrow intense reflected beam close in structure to an eigenmode. A consistent choice of orientations of the sagittal plane and surface that excludes the reflection of a parasitic wave of leakage is found.
Citation:
V. I. Alshits, D. A. Bessonov, V. N. Lyubimov, “Intensification of acoustic beams in crystals at mode conversion near total internal reflection”, Pis'ma v Zh. Èksper. Teoret. Fiz., 106:1 (2017), 45–50; JETP Letters, 106:1 (2017), 40–45