Detection of terahertz radiation by resonant tunneling nanoheterostructures
- Авторы: Egorkin V.1, Kapaev V.1,2
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Учреждения:
- National Research University MIET
- Lebedev Physical Institute
- Выпуск: Том 45, № 3 (2016)
- Страницы: 205-214
- Раздел: Article
- URL: https://journals.rcsi.science/1063-7397/article/view/185641
- DOI: https://doi.org/10.1134/S1063739716020037
- ID: 185641
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Аннотация
The phenomenon of terahertz radiation detection by resonant tunneling structures (RTSs) has been studied. The calculations of the changes ΔI0 in the direct current (DC) component I0 under the action of an alternating electric field were carried out by the solution of a nonstationary Schrodinger equation with a time-periodic electric field based on the Floquet mode expansion of the wave functions. The dependences of the DC component I0 in resonant tunneling structures on the frequency ν and AC signal amplitude Vac have been built. It is shown that the ΔI0 value in triple-barrier RTSs at resonance frequency hv ≈ Er2–Er1 (Er1 and Er2 are the energies of the size-quantized levels) can exceed a low-frequency value by more than an order of magnitude. The parameters of the structures have been optmized, in order to use them in the terahertz radiation detectors in the anbsence of an external bias. The possibility of tuning the resonance frequency in the terahertz range by changing the DC bias has been shown.
Об авторах
V. Egorkin
National Research University MIET
Email: kapaev@sci.lebedev.ru
Россия, Moscow, 124498
V. Kapaev
National Research University MIET; Lebedev Physical Institute
Автор, ответственный за переписку.
Email: kapaev@sci.lebedev.ru
Россия, Moscow, 124498; Moscow, 119991