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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41311

Title: Nonlocal and nonlinear effects on the dispersion relation for surface plasmon at a metal–Kerr medium interface
Authors: Jung-Hao Huang
Railing Chang
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: dispersion relation
surface plasmon
nonlocality
nonlinearity
Date: 2010
Issue Date: 2017-02-14T03:42:37Z
Publisher: The Journal of Optics
Abstract: Abstract
We present a theoretical study on the dispersion relation for surface plasmons at a metal–Kerr medium interface where the metal is described by a nonlocal dielectric function according to the hydrodynamic model. The Kerr effect leads to a shift of the surface plasmon frequency depending on the electric field intensity, the magnitude as well as the sign of the Kerr coefficient, and the wavevector. We further observe that this frequency shift is largely quenched
for large wavenumbers for which the nonlocal effect is significantly manifested. We account for this quenching quantitatively by a calculation showing how the nonlocality weakens the sensitivity in the metal’s response to the variation of the dielectric function of the Kerr medium. A possible experimental observation of this new effect is briefly discussed.
Relation: 12(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41311
Appears in Collections:[光電科學研究所] 期刊論文

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