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This article is cited in 7 scientific papers (total in 7 papers)
OPTICS AND NUCLEAR PHYSICS
Ensemble of asymmetric quantum dots in a cavity as a terahertz laser source
I. Yu. Chestnova, V. A. Shakhnazaryanbcd, I. A. Shelykhbce, A. P. Alodjantsab a Vladimir State University, Vladimir, Russia
b National Research University of Information Technologies, Mechanics, and Optics (ITMO University), St. Petersburg, Russia
c Science Institute, University of Iceland, Reykjavik, Iceland
d Institute of Mathematics and High Technologies, Russian–Armenian (Slavonic) University, Yerevan, Armenia
e Division of Physics and Applied Physics, Nanyang Technological University, Singapore
Abstract:
The possibility of establishing a terahertz laser generation at a transition between the dressed states formed by the interaction of an intense optical field with an ensemble of asymmetric quantum dots (QDs) in a high-$Q$ terahertz cavity is discussed. It has been shown that the population inversion in the system of dressed states is achieved owing to spontaneous relaxation of the excited state of the QDs. The set of Maxwell–Bloch equations for the difference between dressed-state populations, polarization, and population of the cavity mode has been analyzed in the mean-field approximation. The lasing conditions have been clarified and the possibility of controlling the terahertz radiation intensity has been studied, including the case of an inhomogeneously broadened ensemble of QDs.
Received: 08.06.2016 Revised: 24.06.2016
Citation:
I. Yu. Chestnov, V. A. Shakhnazaryan, I. A. Shelykh, A. P. Alodjants, “Ensemble of asymmetric quantum dots in a cavity as a terahertz laser source”, Pis'ma v Zh. Èksper. Teoret. Fiz., 104:3 (2016), 167–172; JETP Letters, 104:3 (2016), 169–174
Linking options:
https://www.mathnet.ru/eng/jetpl5014 https://www.mathnet.ru/eng/jetpl/v104/i3/p167
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