Continuous-wave highly-efficient low-divergence terahertz wire lasers

Quantum cascade lasers are compact sources, but simultaneously achieving cw operation, low divergence and single-mode emission has proven difficult. Here, Biasco et al. use a combination of distributed feedback and outcoupling via hole arrays, improving the performance of such a terahertz laser.

Bibliographic Details
Main Authors: Simone Biasco, Katia Garrasi, Fabrizio Castellano, Lianhe Li, Harvey E. Beere, David A. Ritchie, Edmund H. Linfield, A. Giles Davies, Miriam S. Vitiello
Format: Article
Language:English
Published: Nature Publishing Group 2018-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-018-03440-4