Confinement of THz surface waves on the subwavelength size metal waveguide |
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| Authors: | Djamal Gacemi Juliette Mangeney Karine Blary Jean-Francois Lampin Thibault Laurent Tahsin Akalin Paul Crozat Fanqi Meng |
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| Affiliation: | 1. Institut d??Electronique Fondamentale, UMR CNRS 8622, Univ. Paris Sud-XI, Paris, France
2. Institut d??Electronique de Micro??lectronique et de Nanotechnologie, UMR CNRS 8520, Paris, France
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| Abstract: | We investigate surface plasmon waves propagating on planar Goubau lines, so-called Goubau modes, using a guided-wave terahertz spectroscopy system based on a freely positionable electrooptic probe. We show the radial nature of the Goubau mode and its confinement around the Goubau line over a few tenths of microns (??/10). |
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