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Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling
- Source :
- Applied Physics Letters 112, 021104 (2018)
- Publication Year :
- 2017
-
Abstract
- We present a two-quantum well THz intersubband laser operating up to 192 K. The structure has been optimized with a non-equilibrium Green's function model. The result of this optimization was confirmed experimentally by growing, processing and measuring a number of proposed designs. At high temperature (T>200 K), the simulations indicate that lasing fails due to a combination of electron-electron scattering, thermal backfilling, and, most importantly, re-absorption coming from broadened states.<br />Comment: Main article: 5 pages, 5 figures
- Subjects :
- Physics - Applied Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Applied Physics Letters 112, 021104 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1709.09563
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/1.5004640