Second Harmonic Generation in Piezoelectric Semiconductors

Abstract

The second harmonic generations in piezoelectric semiconductorts are investigated by assuming a parabolic band structure. The second harmonic generation can be found to be expressed in terms of the fundamental. It is shown that the amplitude of second harmonic generation is proportional to the quadratic of the fundamental and depends upon the sound frequency for parabolic band structure in n-type InSb. Therefore the intensity of the second harmonic generation is proportional to the quadratic of the intensity of the fundamental.