InAs/AlSb quantum cascade lasers operating at 10 μm

K. Ohtani, H. Ohno

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


The InAs/AlSb intersubband quantum cascade lasers based on bound-to-continuum transitions were operated at 10 μm. An indirect intersubband transition with a double plasmon waveguide structure was employed. The lowest threshold current density was 4.9 kA/cm2 and the laser emission wavelength was 10.1 μm.

Original languageEnglish
Pages (from-to)1003-1005
Number of pages3
JournalApplied Physics Letters
Issue number7
Publication statusPublished - 2003 Feb 17


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