Wang Xuemin, Shen Changle, Jiang Tao, et al. Fabrication of 2.5 THz quantum cascade laser[J]. High Power Laser and Particle Beams, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102
Citation:
Wang Xuemin, Shen Changle, Jiang Tao, et al. Fabrication of 2.5 THz quantum cascade laser[J]. High Power Laser and Particle Beams, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102
Wang Xuemin, Shen Changle, Jiang Tao, et al. Fabrication of 2.5 THz quantum cascade laser[J]. High Power Laser and Particle Beams, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102
Citation:
Wang Xuemin, Shen Changle, Jiang Tao, et al. Fabrication of 2.5 THz quantum cascade laser[J]. High Power Laser and Particle Beams, 2015, 27: 120102. doi: 10.11884/HPLPB201527.120102
Based on bound-to-continuum intersubband transition, the 2.5 THz quantum cascade laser with a continuous-wave (CW) output power of several mW is achieved. The lasing frequency of the device can be tuned by changing the applied current. The device shows a CW output power more than 6 mW, with a threshold current density of 120 A/cm2, and a lasing work temperature up to 60 K, and it is a quasi-Gaussian intensity distribution after beam reformation by using Si lens.