Experimental Study of Spontaneous Emission in Bragg Multiple- Quantum-Well Structures with InAs Single-Layer Quantum Wells
- Autores: 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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Afiliações:
- St. Petersburg National Research Academic University
- Ioffe Institute
- ITMO University
- Department of Physics, Chemistry and Biology (IFM)
- Edição: Volume 52, Nº 7 (2018)
- Páginas: 877-880
- Seção: 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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Resumo
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.
Sobre autores
M. Kaliteevski
St. Petersburg National Research Academic University; Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 194021; St. Petersburg, 197101
E. Nikitina
St. Petersburg National Research Academic University; Ioffe Institute
Autor responsável pela correspondência
Email: E.Nikitina@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 194021
A. Gubaidullin
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
K. Ivanov
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
A. Egorov
Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197101
G. Pozina
Department of Physics, Chemistry and Biology (IFM)
Email: E.Nikitina@mail.ioffe.ru
Suécia, Linkoping, S-58183