Abstract
Stimulated emission from a heterostructure with Hg0.903Cd0.097Te/Cd0.7Hg0.3Te quantum wells, placed in a waveguide layer of wide-gap CdHgTe, is obtained at wavelengths of 14–11 μm and a temperatures of 18–80 K. The threshold Auger recombination energy is calculated for a set of heterostructures with quantum wells of pure HgTe with a band gap of 90 meV (wavelength 14 μm). The possibility of fabricating lasers operating at 14 μm and working temperatures higher than that of liquid nitrogen is demonstrated.
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ACKNOWLEDGMENTS
The study was carried out on equipment of the unique stand “Femtospektr” at the Collective Use Center, Institute for Physics of Microstructures, Russian Academy of Sciences.
Funding
The stimulated emission spectra were examined and the threshold Auger recombination energy was calculated with support from the Russian Science Foundation (grant no. 17-12-01360). Characterization of the structures from changes in the photoluminescence spectra and calculation of the band spectra of the structures were supported by the Ministry of Education and Science of the Russian Federation (MK-4399.2018.2).
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Translated by M. Tagirdzhanov
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Utochkin, V.V., Aleshkin, V.Y., Dubinov, A.A. et al. Study of the Auger Recombination Energy Threshold in a Series of Waveguide Heterostructures with HgTe/Cd0.7Hg0.3Te QWs Near 14 μm. Semiconductors 53, 1154–1157 (2019). https://doi.org/10.1134/S1063782619090264
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DOI: https://doi.org/10.1134/S1063782619090264