2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves 2012
DOI: 10.1109/irmmw-thz.2012.6380274
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Longitudinal holograms in terahertz lasers: Electronic tuning and frequency control

Abstract: Abstract-A longitudinal computer-generated hologram is incorporated into the Fabry-Pérot cavity of a terahertz quantum cascade laser which displays two distinct spectral gain peaks. The combined cavity and hologram feedback mechanisms lead to digitally selective dual-mode emission with a difference frequency which may be electronically tuned from 190 GHz to 267 GHz.I.

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