Effect of Features of the Band Spectrum on the Characteristics of Stimulated Emission in Narrow-Gap Heterostructures with HgCdTe Quantum Wells

• Published in: Semiconductors (Woodbury, N.Y.) Vol. 52; no. 11; pp. 1375 - 1379
• Main Authors: Rumyantsev, V. V., Kulikov, N. S., Kadykov, A. M., Fadeev, M. A., Ikonnikov, A. V., Kazakov, A. S., Zholudev, M. S., Aleshkin, V. Ya, Utochkin, V. V., Mikhailov, N. N., Dvoretskii, S. A., Morozov, S. V., Gavrilenko, V. I.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.11.2018; Springer; Springer Nature B.V
• Subjects: 2018; Cadmium compounds; DIELECTRIC MATERIALS; Dielectric waveguides; Emission; Heterostructures; Lasers; Magnetic Materials; Magnetism; March 12–15; MATERIALS SCIENCE; Mercury cadmium tellurides; Nanocrystals; Nizhny Novgorod; Physics; Physics and Astronomy; Quantum cascade lasers; QUANTUM WELLS; SOLID SOLUTIONS; STIMULATED EMISSION; Waveguides; Xxii International Symposium “Nanophysics and Nanoelectronics”; Stimulated Emission (SE); Quantum Cascade Lasers; Shockley Read Hall Recombination Centers; Quantum Wells (QWs); Structure Growth Axis
• ISSN: 1063-7826; 1090-6479
• DOI: 10.1134/S1063782618110234

We report on the stimulated emission obtained in the wavelength range of 20.3–17.4 μm on the interband transitions at T = 8–50 K in HgCdTe quantum wells placed in a dielectric waveguide formed from wide-gap CdHgTe solid solution. Heterostructures with HgCdTe quantum wells are interesting for designing long-wavelength lasers operating in the wavelength range of 25–60 μm, which is not covered by currently available quantum cascade lasers. It is shown that the maximum temperature of stimulated emission is determined by the position of lateral maxima in the dispersion dependences in the first valence subband of the quantum well. Methods for suppressing nonradiative recombination in the structures with HgCdTe quantum wells are discussed.