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Proceedings Paper

Semiconductor-coated deep subwavelength spoof surface plasmonic waveguide for THz and MIR applications
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Paper Abstract

We propose integrated waveguides for terahertz (THz) and mid-infrared (MIR) applications on wafer platform. Based on the prototype of spoof plasmonic waveguides consisting of textured metallic surface, we explore the possibility of coating periodic metallic pattern with silicon (at 0.6 THz) or germanium (at MIR region of 30 THz) to further shrink the relative mode size of propagation spoof plasmonic waves. Numerical modeling via 3D finite-difference time-domain (FDTD) has shown deep sub-wavelength mode confinement in transverse directions to smaller than λ/50 by λ/50, with an estimated propagation loss of less than 0.1 dB for each repetitive unit.

Paper Details

Date Published: 23 February 2011
PDF: 6 pages
Proc. SPIE 7938, Terahertz Technology and Applications IV, 79380A (23 February 2011); doi: 10.1117/12.874247
Show Author Affiliations
Ruoxi Yang, Rochester Institute of Technology (United States)
Wangshi Zhao, Rochester Institute of Technology (United States)
Richard A. Soref, Air Force Research Lab. (United States)
Zhaolin Lu, Rochester Institute of Technology (United States)

Published in SPIE Proceedings Vol. 7938:
Terahertz Technology and Applications IV
Laurence P. Sadwick; Créidhe M. M. O'Sullivan, Editor(s)

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