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Propagation of Terahertz Surface Plasmon Pulses in a Plasmonic Fiber
Version 1
: Received: 7 June 2023 / Approved: 8 June 2023 / Online: 8 June 2023 (04:01:07 CEST)
A peer-reviewed article of this Preprint also exists.
Petrov, N.I. Dispersive Propagation of Terahertz Pulses in a Plasmonic Fiber. Fibers 2023, 11, 62. Petrov, N.I. Dispersive Propagation of Terahertz Pulses in a Plasmonic Fiber. Fibers 2023, 11, 62.
Abstract
The dispersion properties of surface plasmon polaritons during propagation on metal wires with a dielectric coating in the terahertz frequency range are investigated theoretically. An analytical expression is obtained for a pulsed electric field from the solution of Maxwell equations taking into account high-order dispersion terms. The effect of the dielectric coating on the distortion of the pulse shape is analyzed. Unlike uncoated wire, the propagation of a surface plasmon pulses along a coated wire is highly dispersive. It is shown that the coating leads to the appearance of a long-chirped signal with a propagation of only a few millimeters, i.e. when a terahertz pulse propagates along a coated wire, it acquires a long oscillatory tail, the frequency of which depends on time.
Keywords
plasmonic fiber; dielectric coating; THz surface plasmon waves; dispersive propagation; chirped signal
Subject
Physical Sciences, Applied Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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