Author:
Kojima Osamu,Osaki Shinnosuke,Kita Takashi,Akahane Kouichi
Abstract
Abstract
In this study, we report the generation of frequency-tunable even-order nonlinear polarization in the above gap states in strained multiple quantum wells. Using the strain field, the even-order polarization to emit terahertz waves is generated in a zincblende crystal. Our results can make the material and laser choice ranges wide because the exciton resonant excitation is unnecessary.
Funder
Japan Society for the Promotion of Science
Iketani Science and Technology Foundation
Subject
General Physics and Astronomy,General Engineering