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Conference 11999 > Paper 11999-4
Paper 11999-4

Propagation analysis of space-time surface plasmon polariton wavepacket excited by light irradiation on nanobeam structure

Abstract

We investigate space-time surface plasmon polariton wave packet (ST-SPP WP), a conceptual correspondence of a surface-wave to the space-time wave packet (ST WP) that excited on a metal surface through a light-SPP coupling on a nano-scaled ridge. In a framework of the finite-difference time-domain (FDTD) method, a pulsed excitation light was constructed by using hundreds of plane waves of which the lateral and the longitudinal wavenumbers and the frequency were determined according to the dispersion relation of SPP on the metal. The ST-SPP WP launched from the nano-ridge exhibited a significant dispersion-free propagation and a tunability of the group velocity.

Presenter

Univ. of Tsukuba (Japan)
Presenter/Author
Univ. of Tsukuba (Japan)
Author
Murat Yessenov
CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Author
CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Author
CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Author
Atsushi Kubo
Univ. of Tsukuba (Japan)