Experimental Study of Spontaneous Emission in Bragg Multiple- Quantum-Well Structures with InAs Single-Layer Quantum Wells
- Авторы: Kaliteevski M.1,2,3, Nikitina E.1,2, Gubaidullin A.1,3, Ivanov K.1,3, Egorov A.2,3, Pozina G.4
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Учреждения:
- St. Petersburg National Research Academic University
- Ioffe Institute
- ITMO University
- Department of Physics, Chemistry and Biology (IFM)
- Выпуск: Том 52, № 7 (2018)
- Страницы: 877-880
- Раздел: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/203649
- DOI: https://doi.org/10.1134/S1063782618070187
- ID: 203649
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Аннотация
The time-resolved photoluminescence of a Bragg structure formed by InAs single-layer quantum wells in a GaAs matrix is investigated experimentally. The comparison of photoluminescence spectra recorded from the edge and the surface of the sample indicates that Bragg ordering of the quantum wells leads to substantial modification of the spectra, in particular, to the appearance of additional modes. The spectrum recorded at the edge of the sample features a single line corresponding to the exciton ground state. In the spectrum recorded at the surface, an additional line whose frequency and propagation angle correspond to the Bragg condition for quantum wells, appears at high excitation levels. The calculation of the modal Purcell factor explains the fact that spontaneous emission is enhanced only for specific propagation angles and frequencies, rather than for all angles and frequencies satisfying the Bragg condition.
Об авторах
M. Kaliteevski
St. Petersburg National Research Academic University; Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194021; St. Petersburg, 197101
E. Nikitina
St. Petersburg National Research Academic University; Ioffe Institute
Автор, ответственный за переписку.
Email: E.Nikitina@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194021
A. Gubaidullin
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
K. Ivanov
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
A. Egorov
Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
G. Pozina
Department of Physics, Chemistry and Biology (IFM)
Email: E.Nikitina@mail.ioffe.ru
Швеция, Linkoping, S-58183