Experimental Study of Spontaneous Emission in the Bragg Multiple Quantum Wells Structure of InAs Monolayers Embedded in a GaAs Matrix
- Авторы: Pozina G.1, Kaliteevski M.2,3,4, Nikitina E.2,3, Gubaidullin A.2,4, Morozov K.2, Girshova E.2, Ivanov K.4, Egorov A.2,3,4
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Учреждения:
- Department of Physics, Chemistry and Biology (IFM), Linkoping University
- St. Petersburg Academic University
- Ioffe Institute
- ITMO University
- Выпуск: Том 52, № 14 (2018)
- Страницы: 1822-1826
- Раздел: Microcavity and Photonic Crystals
- URL: https://journals.rcsi.science/1063-7826/article/view/205020
- DOI: https://doi.org/10.1134/S1063782618140245
- ID: 205020
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Аннотация
Time-resolved photoluminescence of a Bragg structure of InAs-monolayer quantum wells in GaAs matrix was experimentally studied with. Comparison of luminescence patterns from the side and from the surface of a sample showed that Bragg-type ordering of quantum wells leads to a substantial alteration of the photoluminescence spectra including appearance of additional radiative modes. The sample side spectrum contains a single line corresponding to a ground state of an exciton. The surface spectrum at high excitation levels a new radiation line appears whose frequency and propagation angle correspond to the Bragg condition for quantum wells. A numerical calculation of the modal Purcell factor explains why the radiative emission amplification occurs only at a set of specific angles and frequencies, as opposed to the whole range that satisfies the Bragg condition.
Об авторах
G. Pozina
Department of Physics, Chemistry and Biology (IFM), Linkoping University
Email: kivanov@corp.ifmo.ru
Швеция, Linkoping, S-58183
M. Kaliteevski
St. Petersburg Academic University; Ioffe Institute; ITMO University
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194021; St. Petersburg, 197101
E. Nikitina
St. Petersburg Academic University; Ioffe Institute
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194021
A. Gubaidullin
St. Petersburg Academic University; ITMO University
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021; St. Petersburg, 197101
K. Morozov
St. Petersburg Academic University
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021
E. Girshova
St. Petersburg Academic University
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021
K. Ivanov
ITMO University
Автор, ответственный за переписку.
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 197101
A. Egorov
St. Petersburg Academic University; Ioffe Institute; ITMO University
Email: kivanov@corp.ifmo.ru
Россия, St. Petersburg, 194021; St. Petersburg, 194021; St. Petersburg, 197101