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XXV International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 9-12, 2021
Effect of internal optical losses on the generation of mid-IR stimulated emission in waveguide heterostructures with HgCdTe/CdHgTe quantum wells
V. V. Utochkina, A. A. Dubinova, M. A. Fadeeva, V. V. Rumyantseva, N. N. Mikhailovb, S. A. Dvoretskiib, V. I. Gavrilenkoa, S. V. Morozovac a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
b Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
c Lobachevsky State University of Nizhny Novgorod
Abstract:
Two waveguide heterostructures with an array of 10 HgCdTe/CdHgTe quantum wells grown within a single technological series and designed to generate stimulated emission near 20 and 30 $\mu$m are studied. At a temperature of 10 K, stimulated emission in the “short-wavelength” structure is obtained at a wavelength of $\sim$ 23.9 $\mu$m, while in the “long-wavelength” structure stimulated emission is not observed. Calculations of optical absorption in the passive layers for both structures are carried out and it is demonstrated that its level is higher in the long-wavelength structure. Approaches are proposed to minimize its effect on the generation of stimulated emission.
Keywords:
mid-IR range, HgCdTe, quantum wells, stimulated emission.
Received: 12.04.2021 Revised: 19.04.2021 Accepted: 19.04.2021
Citation:
V. V. Utochkin, A. A. Dubinov, M. A. Fadeev, V. V. Rumyantsev, N. N. Mikhailov, S. A. Dvoretskii, V. I. Gavrilenko, S. V. Morozov, “Effect of internal optical losses on the generation of mid-IR stimulated emission in waveguide heterostructures with HgCdTe/CdHgTe quantum wells”, Fizika i Tekhnika Poluprovodnikov, 55:10 (2021), 922–926; Semiconductors, 55:12 (2021), 899–902
Linking options:
https://www.mathnet.ru/eng/phts4964 https://www.mathnet.ru/eng/phts/v55/i10/p922
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