Experimental Study of Spontaneous Emission in Bragg Multiple- Quantum-Well Structures with InAs Single-Layer Quantum Wells
- Authors: Kaliteevski M.A.1,2,3, Nikitina E.V.1,2, Gubaidullin A.R.1,3, Ivanov K.A.1,3, Egorov A.Y.2,3, Pozina G.4
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Affiliations:
- St. Petersburg National Research Academic University
- Ioffe Institute
- ITMO University
- Department of Physics, Chemistry and Biology (IFM)
- Issue: Vol 52, No 7 (2018)
- Pages: 877-880
- Section: 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
Cite item
Abstract
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.
About the authors
M. A. Kaliteevski
St. Petersburg National Research Academic University; Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194021; St. Petersburg, 197101
E. V. Nikitina
St. Petersburg National Research Academic University; Ioffe Institute
Author for correspondence.
Email: E.Nikitina@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 194021
A. R. Gubaidullin
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101
K. A. Ivanov
St. Petersburg National Research Academic University; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101
A. Yu. Egorov
Ioffe Institute; ITMO University
Email: E.Nikitina@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 197101
G. Pozina
Department of Physics, Chemistry and Biology (IFM)
Email: E.Nikitina@mail.ioffe.ru
Sweden, Linkoping, S-58183