Experimental investigations into capability of terahertz surface plasmons to bridge macroscopic air gaps | Zendy

V. V. Gerasimov | Zendy; B. A. Knyazev | Zendy; A. K. Nikitin | Zendy; G. N. Zhizhin | Zendy

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Experimental investigations into capability of terahertz surface plasmons to bridge macroscopic air gaps

Author(s) -

V. V. Gerasimov,

B. A. Knyazev,

A. K. Nikitin,

G. N. Zhizhin

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.033448

Subject(s) - terahertz radiation , surface plasmon , optics , materials science , plasmon , optoelectronics , laser , wavelength , terahertz spectroscopy and technology , physics

Results of experimental and theoretical studies of the capability of terahertz surface plasmons (SPs) to cross macroscopic air gaps in a substrate (or between substrates) with admissible losses are presented. SPs were launched with quasi-cw free-electron laser radiation with 130 μm wavelength (λ). We managed to detect SPs passing across gaps as wide as 100 mm (or about 10(3)⋅λ), which is very promising for development of terahertz SP circuitry. The phenomenon was harnessed for splitting an SP beam into two new ones, guided by their own individual plane-surface substrates.

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