@inproceedings{748973bcdabc43ae890a4de92f9b072e,
title = "Terahertz quantum cascade laser coupled with high efficiency to the low loss optical modes of cylindrical hollow core waveguides",
abstract = "We demonstrate that azimuthally polarized micro-ring THz quantum-cascade lasers can be coupled to hollow metallic waveguides with efficiencies ±96% and perfectly matched with the TE01 waveguide mode, giving attenuation losses < 3dB/m. The use of Ag coated-flexible pipe waveguides allows propagation of either vertically polarized or azimuthally polarized QCL beams with propagation losses as low as 2.1-4.4 dB/m and bending losses lower than 1.2 dB.",
keywords = "Quantum cascade laser, Terahertz, Waveguides",
author = "Vitiello, {Miriam S.} and Xu, {J. H.} and F. Beltram and A. Tredicucci and O. Mitrofanov and Harrington, {James A.} and Beeree, {H. E.} and Ritchie, {D. A.}",
year = "2011",
doi = "10.1117/12.899132",
language = "English (US)",
isbn = "9780819487292",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Terahertz Emitters, Receivers, and Applications II",
note = "Terahertz Emitters, Receivers, and Applications II ; Conference date: 21-08-2011 Through 21-08-2011",
}