THz quantum cascade lasers (QCLs)
Zbig Wasilewski Department of Electrical and Computer Engineering, Department of Physics and Astronomy and Waterloo Institute for Nanotechnology, University of Waterloo Since their initial demonstration in 2002,{Kohler, 2002 #24291} THz QCLs have achieved a remarkable progress and can now operate in 1.2 ‑ 4.5THz spectral range with maximum operating temperatures for the best devices of ∼200K.1 Increasing their…