Design of terahertz beam splitter based on surface plasmon resonance transition

doi:10.1088/1674-1056/25/4/047301

Abstract According to the resonance transition between propagating surface plasmon and localized surface plasmon, we demonstrate a design of beam splitter that can split terahertz wave beams in a relatively broad frequency range. The transmission properties of the beam splitter are analyzed utilizing the finite element method. The resonance transition between two kinds of plasmons can be explained by a model of coherent electron cloud displacement.

Keywords: terahertz surface plasmon splitter resonance transition

Received: 22 July 2015
Revised: 25 December 2015
Accepted manuscript online:

PACS:	73.20.Mf	(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
	52.65.-y	(Plasma simulation)
	87.50.u-
	91.30.Fn	(Surface waves and free oscillations)

Corresponding Authors: Dong-Xiao Yang
E-mail: yangdx@zju.edu.cn

Cite this article:

Xiang Liu(刘项), Dong-Xiao Yang(杨冬晓) Design of terahertz beam splitter based on surface plasmon resonance transition 2016 Chin. Phys. B 25 047301

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Design of terahertz beam splitter based on surface plasmon resonance transition

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