2001/09/18 by A. Wacker, S.-C. Lee, S. -C. Lee
Chemistry · Engineering · Physics and Astronomy · #Laser Design and Applications #Semiconductor Lasers and Optical Devices #Spectroscopy and Laser Applications #cond-mat.mes-hall
paper · pdf · doi:10.1016/s0921-4526(01)01402-8
published as Physica B 314, 327-331 (2002) · 7 pages, 3 figures directly included
arxiv created 2001/09/18 · openalex publication_date 2002/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We report gain calculations for a quantum cascade laser using a fully self-consistent quantum mechanical approach based on the theory of nonequilibrium Green functions. Both the absolute value of the gain as well as the spectral position at threshold are in excellent agreement with experimental findings for T=77 K. The gain strongly decreases with temperature.