[16a-A202-1~4] 3.8 Terahertz technologies (formerly 3.9)

[16a-A202-1] A room-temperature nonlinear quantum cascade laser operating at 231 GHz

〇Shohei Hayashi¹, Akio Ito¹, Tatsuo Dougakiuchi¹, Masahiro Hitaka¹, Atsushi Nakanishi¹, Kazuue Fujita¹ (1.HPK CRL)

Keywords:quantum cascade laser, terahertz, nonlinear optics

An efficient THz extraction method was applied to nonlinear QCLs with high nonlinear susceptibility in order to achieve the lowest frequency operation at room temperature in monolithic optical semiconductors. As a result, the room-temperature nonlinear QCL operating at 231 GHz is realized.