Аннотация
Stimulated emission (SE) at wavelengths up to 20.3 μm (14.7 THz) is demonstrated from HgCdTe based quantum well heterostructures. The mitigation of Auger processes resulting from «graphene-like» energy spectrum in structures under study is exemplified. By studying the carrier lifetime via time resolved photoconductivity and transmission pump-probe measurements we show that further increase in SE wavelength is feasible and discuss the promising routes towards the 5 - 15 THz frequency domain, where quantum cascade lasers are scarce and HgCdTe lasers may be competitive to the prominent emitters.
Язык оригинала | английский |
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Номер статьи | 012126 |
Журнал | Journal of Physics: Conference Series |
Том | 1092 |
DOI | |
Состояние | Опубликовано - 1 янв 2018 |
Событие | 3rd International Conference on Metamaterials and Nanophotonics, METANANO 2018 - Sochi, Российская Федерация Продолжительность: 17 сен 2018 → 21 сен 2018 |