Regular Article

Acousto-optic interaction in Raman–Nath acousto-optic diffraction

¹ College of Physics and Energy, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fujian Normal University, Fuzhou 350007, P.R. China
² Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, Fujian Normal University, Fuzhou 350007, P.R. China
³ Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Xiamen 361005, P.R. China

^a e-mail: ywhe@fjnu.edu.cn

Received: 17 March 2018
Received in final form: 17 April 2018
Published online: 10 January 2019

Abstract

In this article, acousto-optic interaction in Raman–Nath acousto-optic diffraction has been discussed. By studying the relations between the power of the diffracted light and its origin in the ultrasonic field, we found that the phase of the diffracted light is modulated temporally and spatially by the ultrasonic wave. Finally, we present a method to obtain the Raman–Nath acousto-optic diffraction without the optical phase modulations.