Thermal conductivity tensors of the cladding and active layers of antimonide infrared lasers and detectors

Chuanle Zhou, I. Vurgaftman, C. L. Canedy, S. Kim, M. Kim, W. W. Bewley, C. D. Merritt, J. Abell, J. R. Meyer, A. Hoang, A. Haddadi, M. Razeghi, M. Grayson*

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The in-plane and cross-plane thermal conductivities of the cladding layers and active quantum wells of interband cascade lasers and type-II superlattice infrared detector are measured by the 2-wire 3ω method. The layers investigated include InAs/AlSb superlattice cladding layers, InAs/GaInSb/InAs/AlSb W-active quantum wells, an InAs/GaSb superlattice absorber, an InAs/GaSb/AlSb M-structure, and an AlAsSb digital alloy. The in-plane thermal conductivity of the InAs/AlSb superlattice is 4-5 times higher than the cross-plane value. The isotropic thermal conductivity of the AlAsSb digital alloy matches a theoretical expectation, but it is one order of magnitude lower than the only previously-reported experimental value.

Original languageEnglish (US)
Pages (from-to)1632-1640
Number of pages9
JournalOptical Materials Express
Volume3
Issue number10
DOIs
StatePublished - Nov 27 2013

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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    Zhou, C., Vurgaftman, I., Canedy, C. L., Kim, S., Kim, M., Bewley, W. W., Merritt, C. D., Abell, J., Meyer, J. R., Hoang, A., Haddadi, A., Razeghi, M., & Grayson, M. (2013). Thermal conductivity tensors of the cladding and active layers of antimonide infrared lasers and detectors. Optical Materials Express, 3(10), 1632-1640. https://doi.org/10.1364/OME.3.001632