Multiple-scattering dipole approach to modeling of surface plasmon polariton band gap structures

被引:30
作者
Bozhevolnyi, SI [1 ]
Volkov, VS [1 ]
机构
[1] Univ Aalborg, Inst Phys, DK-9220 Aalborg, Denmark
关键词
surface plasmon polaritons; photonic band gap materials; photonic crystals; multiple scattering; self-consistent field;
D O I
10.1016/S0030-4018(01)01516-4
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Elastic (in the surface plane) scattering of surface plasmon polaritons (SPPs) by a finite-size periodic structure of surface scatterers is modeled by using the multiple-scattering approach, in which the response of an individual scatterer to the incident field is described by its isotropic dipolar polarizability. Numerical simulations are carried out for 400 pointlike scatterers. arranged in a 400-nm-period triangular lattice containing line defects of different width in GammaK direction of the irreducible Brillouin zone of the lattice. We obtain that the SPP excited within the wavelength range of 690-730 nm is efficiently reflected by the periodic structure while the 1.6-mum-wide line defect supports the unhindered SPP propagation. These findings are compared with the available experimental results. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:241 / 245
页数:5
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