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Kvantovaya Elektronika, 2010, Volume 40, Number 7, Pages 579–582 (Mi qe14251)  

Lasers

Stimulated emission from optically pumped quantum dots

A. A. Andronova, Yu. N. Nozdrina, A. V. Okomel'kova, A. P. Vasil'evb, A. E. Zhukovb, V. M. Ustinovb

a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
b Ioffe Institute, St. Petersburg
References:
Abstract: Stimulated emission from optically pumped quantum dot arrays has been studied experimentally at room temperature. We have demonstrated stimulated emission on interband transitions from the ground level in a quantum well (λ ≈ 1.31 μm) and from two excited states (λ ≈ 1.21 and 1.12 μm). The gain coefficient of the transitions has been evaluated using exposed strips of variable length. The gain coefficients thus obtained are rather large, up to 15—17 cm-1 (at λ ≈ 1.31 μm). A procedure is discussed for measuring large gain coefficients (above 10 cm-1) of active media. The stimulated emission from the excited states is found to be sharply suppressed with increasing strip length.
Received: 29.11.2009
Revised: 12.05.2010
English version:
Quantum Electronics, 2010, Volume 40, Issue 7, Pages 579–582
DOI: https://doi.org/10.1070/QE2010v040n07ABEH014251
Bibliographic databases:
Document Type: Article
PACS: 78.45.+h, 78.55.Et, 78.66.Hf
Language: Russian


Citation: A. A. Andronov, Yu. N. Nozdrin, A. V. Okomel'kov, A. P. Vasil'ev, A. E. Zhukov, V. M. Ustinov, “Stimulated emission from optically pumped quantum dots”, Kvantovaya Elektronika, 40:7 (2010), 579–582 [Quantum Electron., 40:7 (2010), 579–582]
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