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Spoof surface plasmon analysis based on Marcatili's method

Khosrovani Moghaddam, M. A ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1364/JOSAB.402160
  3. Publisher: OSA-The Optical Society , 2020
  4. Abstract:
  5. Motivated by surface plasmon polariton waveguides in the optical regime, spoof surface plasmon (SSP) waveguides have received a lot of attention in terahertz and millimeter wave frequencies.Most research on these kinds of waveguides is numerical. However, some limited analytical work can be seen in the literature. In this paper, one type of SSP waveguide that is composed of a rectangular corrugation with finite lateral width on the ground is considered, and an analytical method, which is inspired byMarcatili's method, is proposed in order to calculate the dispersion curve of the first mode. The results of this analytical method and a numerical commercial eigenmode solver are compared. The accuracy of this method by varying different geometrical parameters is shown. Finally, it is shown that this method workswell in predicting the electromagnetic fields of the first mode. ©2020 Optical Society of America
  6. Keywords:
  7. Electromagnetic fields ; Electromagnetic wave polarization ; Geometry ; Millimeter waves ; Numerical methods ; Surface plasmon resonance ; Terahertz waves ; Waveguides ; Analytical method ; Dispersion curves ; Eigenmode solvers ; Spoof surface plasmons ; Surface plasmon-polariton waveguides ; Tera Hertz ; Surface plasmons
  8. Source: Journal of the Optical Society of America B: Optical Physics ; Volume 37, Issue 11 , 2020 , Pages 326-3267
  9. URL: https://www.osapublishing.org/josab/abstract.cfm?uri=josab-37-11-3261