Author:
Bilyk V R,Grishunin K A,Sherstyuk N E,Mishina E D,Ovchinnikov A V,Chefonov O V
Abstract
Abstract
The propagation of short optical and terahertz pulses through a noncentrosymmetric (ferroelectric) film on a centrosymmetric substrate is considered. The effect of terahertz electro-induced second harmonic generation is observed in the film. It is shown that the difference in the group velocities of THz and optical pulses leads to a non-mirror-like dependence of the transient nonlinear-optical response upon a mirror image of the film–substrate structure relative to its surface.
Subject
General Physics and Astronomy