Two-well quantum cascade laser optimization by non-equilibrium Green's function modelling
| Autor: | Franckié, M., Bosco, L., Beck, M., Bonzon, C., Mavrona, E., Scalari, G., Wacker, A., Faist, J. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Applied Physics Letters 112, 021104 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.5004640 |
| Popis: | 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. Comment: Main article: 5 pages, 5 figures |
| Databáze: | arXiv |
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