Abstract
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 language | English |
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Pages (from-to) | 1003-1005 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 82 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2003 Feb 17 |