Pb1–xEuxTe alloys (0 ⩽ x ⩽ 1) as materials for vertical-cavity surface-emitting lasers in the mid-infrared spectral range of 4–5 μm

The optical properties of epitaxial layers and heterostructures based on Pb 1– x Eu x Te alloys (0 ⩽ x ⩽ 1) are analyzed in the context of designing Bragg mirrors and vertical-cavity surface-emitting lasers for the midinfrared spectral range. It is shown that the optimal heteropair for laser microca...

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Bibliographic Details
Published inSemiconductors (Woodbury, N.Y.) Vol. 50; no. 2; pp. 228 - 234
Main Authors Pashkeev, D. A., Selivanov, Yu. G., Chizhevskii, E. G., Zasavitskiy, I. I.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.02.2016
Subjects
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
Physics of Semiconductor Devices
Epitaxial Layer
Transmission Spectrum
Laser Structure
PbTe
Stop Band
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Summary:The optical properties of epitaxial layers and heterostructures based on Pb 1– x Eu x Te alloys (0 ⩽ x ⩽ 1) are analyzed in the context of designing Bragg mirrors and vertical-cavity surface-emitting lasers for the midinfrared spectral range. It is shown that the optimal heteropair for laser microcavities is Pb 1– x Eu x Te( x ≈ 0.06)/EuTe. On the basis of this heteropair, highly reflective Bragg mirrors consisting of just three periods and featuring a reflectance of R ⩾ 99.8% at the center of the stop band are grown by molecular-beam epitaxy on BaF 2 (111) substrates. Single-mode optically pumped vertical-cavity surface-emitting lasers for the 4–5 μm spectral range operating at liquid-nitrogen temperatures are demonstrated.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782616020172