Eur. Phys. J. Special Topics 154, 1-5 (2008)
https://doi.org/10.1140/epjst/e2008-00507-4

Light diffraction in an inhomogeneous acoustic field excited by wedge-shaped and parabolic transducers

¹ Department of Physics, M.V. Lomonosov Moscow State University, 119992 Moscow, Russia
² Institute of Experimental Physics, University of Gdańsk, 80-952 Gdańsk, Poland

Abstract

Light diffraction in acoustic fields created by wedge-shaped and parabolic piezoelectric transducers is theoretically investigated. It is shown that the acoustic fields have a complicated amplitude-phase structure changing with the acoustic frequency. Principal characteristics of acousto-optic interaction are examined. It is demonstrated that the diffraction efficiency in the Bragg regime can approach 100% in spite of a noticeable phase mismatch.