Mid-IR stimulated emission in Hg(Cd)Te/CdHgTe quantum well structures up to 200 K due to suppressed Auger recombination

Autor:	V. I. Gavrilenko, N. N. Mikhailov, Sergey A. Dvoretsky, Alexander A. Dubinov, D. S. Bykov, K. E. Kudryavtsev, V. V. Utochkin, V. V. Rumyantsev, S. V. Morozov, Anna A. Razova, V. Ya. Aleshkin, Mikhail A. Fadeev
Rok vydání:	2020
Předmět:	symbols.namesake Materials science Auger effect symbols Stimulated emission Atomic physics Condensed Matter Physics Threshold energy Instrumentation Industrial and Manufacturing Engineering Atomic and Molecular Physics and Optics Quantum well
Zdroj:	Laser Physics. 31:015801
ISSN:	1555-6611 1054-660X
DOI:	10.1088/1555-6611/abd3f5
Popis:	We study the temperature stability of stimulated emission (SE) in HgCdTe/CdHgTe quantum well (QW) heterostructures emitting in the mid-infrared range at wavelengths 7–13 μm. For a series of samples with different band gap energies, maximum operating temperatures at which SE could be achieved are shown to follow closely the characteristic Auger threshold energies derived from the band spectra of the respective QWs. We demonstrate that realization of binary HgTe QWs should provide at least twofold increase in Auger threshold energy compared to the QWs studied (10% Cd content HgCdTe). Thus, one can expect further suppression of non-radiative Auger processes and corresponding increase in operating temperature, the effect being stronger for narrow band gap QWs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8357719a8f3a4ca7ef4987b327f2bbce https://doi.org/10.1088/1555-6611/abd3f5 Zobrazit plný text záznamu