Terahertz photonic crystal quantum cascade lasers.

@article{Zhang2007TerahertzPC,
  title={Terahertz photonic crystal quantum cascade lasers.},
  author={Hua Zhang and L. Andrea Dunbar and Giacomo Scalari and Romuald Houdr{\'e} and J{\'e}r{\^o}me Faist},
  journal={Optics express},
  year={2007},
  volume={15 25},
  pages={16818-27}
}
We combine photonic crystal and quantum cascade band engineering to create an in-plane laser at terahertz frequency. We demonstrate that such photonic crystal lasers strongly improve the performances of terahertz quantum cascade material in terms of threshold current, waveguide losses, emission mode selection, tunability and maximum operation temperature. The laser operates in a slow-light regime between the M saddle point and K band-edge in reciprocal lattice. Coarse frequency control of half… CONTINUE READING
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