[25p-D315-1~18] 3.9 Terahertz technologies

[25p-D315-3] Doping Study for High-Performance Terahertz Quantum Cascade Lasers

〇(DC)Teppei Miyoshi^1,2, Tsung-Tse Lin², Li Wang², Dayan Ban¹, Zbig Wasilewski¹, Hideki Hirayama² (1.Univ. of Waterloo, 2.RIKEN)

Keywords:terahertz, quantum cascade laser, impurity-doping

Research for operating terahertz quantum cascade lasers at room-temperature has been increasingly competitive around the world. Among fundamental techniques, impurity-doping necessary for carrier injection has not adequately been reported in previous work. This study, therefore, aims to investigate doping schemes comprehensively. Based on a two-well resonant-phonon device structure, the influence of doping schemes (amount, position, and distribution) is investigated theoretically and experimentally.