Abstract

 

Acousto-Electronic Nonlinearity: New Experimental Opportunities Using Ritec SNAP System

W.Arthur, B.O'Neill, R.Maev (Department of Physics, University of Windsor, Windsor, Canada); I.Solodov (Department of Acoustics, Faculty of Physics, Moscow State University, Moscow, Russia)

e-mail: arthur1@uwindsor.ca

The paper reports on experimental study of the  higher harmonic generation due to nonlinear  acousto-electronic interaction in a piezoelectric  semiconductor. Ritec SNAP 1-30-I1 system is  applied to measurements of the interaction  characteristics in the frequency range up to 30 MHz  in a CdS single crystal. The unique capabilities  of the SNAP system enables extensive and detailed  measurements of higher harmonic amplitudes as  functions of distance and crystal conductivity for a wide range of input voltages. The contributions  of attenuation, dispersion and nonlinearity into  the acousto-electronic interaction are identified  and analyzed based on the measured space and  dynamic characteristics of the higher harmonic generation. The experimental results obtained are  compared with theoretical calculations relevant to a small signal approximation.

 

Section : 2