Mid-IR Type-II Interband Cascade Lasers

  title={Mid-IR Type-II Interband Cascade Lasers},
  author={Igor Vurgaftman and W. W. Bewley and C. L. Canedy and Chul Soo Kim and Mijin Kim and J. Ryan Lindle and Charles D. Merritt and Joshua Abell and J. R. Meyer},
  journal={IEEE Journal of Selected Topics in Quantum Electronics},
The interband cascade laser (ICL) concept provides robust and efficient emission in the midwave infrared spectral band. While the geometry is somewhat analogous to that of a quantum cascade laser employing intersubband transitions, the ICL implementation exploits the type-II band alignment of the GaSb-based material system. A semimetallic band overlap at the boundary between the electron and hole injector regions automatically generates carriers with densities tunable by quantum confinement… CONTINUE READING
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