A horn-antenna is integrated on a microstrip waveguide QCL emitting at 2.0 THz. This allows a better impedance match to free space, which improves substantially the directivity of the beam and the radiation outcoupling.
© 2007 OSA
(130.0130) Integrated optics : Integrated optics
(130.2790) Integrated optics : Guided waves
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
S. Barbieri, J. Alton, S. Dhillon, C. Sirtori, J. F. Lampin, T. Akalin, E. Peytavit, H. Beere, and D. Ritchie, "Integrated Horn Antenna for Microstrip Waveguide THz Quantum Cascade Lasers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CWP4.
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