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https://elib.bsu.by/handle/123456789/311171
Заглавие документа: | Feasibility of GaAs/AlGaAs quantum cascade laser operating above 6 THz |
Авторы: | Ushakov, D. V. Afonenko, A. A. Afonenko, An. A. Khabibullin, R. A. Fadeev, M. A. Gavrilenko, V. I. Dubinov, A. A. |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | 2024 |
Издатель: | AIP |
Библиографическое описание источника: | J. Appl. Phys. 7 April 2024; 135 (13): 133108 |
Аннотация: | A band design of a quantum cascade laser with a generation frequency higher than 6 THz and an active region based on four GaAs/Al0.14Ga0.86As quantum wells is proposed. Calculations were carried out based on the solution of the Schrödinger equation taking into account the dephasing of quantum states, as well as a closed system of balance equations. The temperature dependences of the gain at frequencies of 6.3–6.6 THz were calculated for the proposed quantum cascade laser with a double metal waveguide. Features of the proposed laser structure include two injection quantum wells and the suppression of non-radiative transitions between laser levels. According to calculations, this provides the maximum operating temperature of up to 81 K at 6.4 THz. The results of this study open up the way for quantum cascade lasers based on GaAs/AlGaAs to operate at frequencies above 6 THz. |
URI документа: | https://elib.bsu.by/handle/123456789/311171 |
DOI документа: | 10.1063/5.0198236 |
Финансовая поддержка: | The work was sponsored by the Russian Science Foundation (Grant No. 23-19-00436). Calculations related to the roughness of hetero-boundaries were performed as part of the project of the BRFBR-RSF (Grant No. 24-49-10004). |
Лицензия: | info:eu-repo/semantics/openAccess |
Располагается в коллекциях: | Кафедра физики и аэрокосмических технологий. Статьи |
Полный текст документа:
Файл | Описание | Размер | Формат | |
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JAP_135_133108.pdf | 1,55 MB | Adobe PDF | Открыть |
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