[19a-Z23-1~6] 13.6 Nanostructures, quantum phenomena, and nano quantum devices

[19a-Z23-2] Exciton effects on frequency dependence of terahertz-wave generation due to difference-frequency mixing in GaAs/AlAs multiple quantum wells

〇Osamu Kojima¹, Kanta Sakaue¹, Takashi Kita¹, Richard Hogg² (1.Kobe Univ., 2.Univ. of Glasgow)

Keywords:exciton, laser, nonlinear optics

We have investigated the terahertz wave generation due to difference-frequency-mixing, and have reported the exciton dynamics in a multiple quantum well to enhance the intensity of the terahertz wave. In this work, we discuss the excitation energy dependence on terahertz wave intensity measured in multiple quantum wells with different quantum well widths.