Mid-infrared intersubband electroluminescence in InAs/GaSb/AlSb type-II cascade structures

K. Ohtani, H. Ohno

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


Mid-infrared intersubband light-emitting diodes based on InAs/GaSb/AlSb type-II cascade structure have been investigated. The observed emission energy is in good agreement with calculation based on the multi-band k · p theory. In contrast to interband cascade structures, dominant polarization of the emitted light is perpendicular to the quantum well layers. Structure dependence of intersubband electroluminescence is also presented.

Original languageEnglish
Pages (from-to)80-83
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1
Publication statusPublished - 2000 Apr
EventThe 5th International Conference on Intersubband Transitions in Quantum Wells (ITQW '99) - Bad Ischl, Austria
Duration: 1999 Sept 71999 Sept 11


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