CST – Computer Simulation Technology

Experimental study of multichromatic terahertz wave propagation through planar micro-channels

Title:
Experimental study of multichromatic terahertz wave propagation through planar micro-channels
Author(s):
Young-Min Shin, Anisullah Baig, Robert Barchfeld, Diana Gamzina, Larry R. Barnett, Neville C. Luhmann, Jr
Source:
APPLIED PHYSICS LETTERS
Vol./Issue/Date:
Volume: 100, Issue. 15, 10 April 2012
Year:
2012
Page(s):
154103 - 154103-4
Keywords:
multichromatic teraherts, wave propagation, planar micro-channels
Abstract:
Previous theoretical and numerical studies [Y. M. Shin and L. R. Barnett, Appl. Phys. Lett. 92, 091501 (2008) and Y. M. Shin et al., Appl. Phys. Lett. 93, 221504 (2008)] have reported that a planar micro-channel with an asymmetric corrugation array supports strongly confined propagation of broadband THz plasmonic waves. The highly broad spectral response is experimentally demonstrated in the near-THz regime of 0.19–0.265 THz. Signal reflection and transmission tests on the three designed micro-channels including directional couplers resulted in a full-width-half-maximum bandwidth of 50-60GHz with an insertion loss of approximately 5 dB, which is in good agreement with simulation data. These micro-structures can be utilized for free electron beam and electronic/optic integrated devices.
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