Distributed feedback ring resonators for vertically emitting terahertz quantum cascade lasers

  title={Distributed feedback ring resonators for vertically emitting terahertz quantum cascade lasers},
  author={Lukas Mahler and Alessandro Tredicucci and Fabio Beltram and Maria Ines Amanti and Christoph Walther and J{\'e}r{\^o}me Faist and Harvey E. Beere and David A. Ritchie},
  journal={CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference},
Terahertz quantum cascade lasers (THz QCLs) were first demonstrated in 2002 [1] and have since undergone rapid development [2]. One of the most active directions of research has been the development of devices emitting in a single longitudinal mode through the use of distributed feedback (DFB) resonators. Because the optical mode in these devices arises through a surface plasmon, it is possible to implement them with periodically arranged slits in the top metallization. This has been… CONTINUE READING
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High-performance operation of single-mode terahertz quantum cascade lasers

  • L. Mahler, A. Tredicucci, R. Köhler, H. E. Beere, E. H. Linfield, D. A. Ritchie
  • Appl. Phys. Lett. 87,
  • 2005
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