Coherent pseudo-mode representation of partially coherent surface plasmon polaritons

被引：17
|
作者：
Mao, Haidan [1 ,2 ]
Chen, Yahong [3 ,4 ]
Ponomarenko, Sergey A. [1 ]
Friberg, Ari T. [3 ]
机构：
[1] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3J 2X4, Canada
[2] Hangzhou Dianzi Univ, Sch Sci, Hangzhou 310018, Zhejiang, Peoples R China
[3] Univ Eastern Finland, Inst Photon, POB 111, FI-80101 Joensuu, Finland
[4] Soochow Univ, Coll Phys Optoelect & Energy, Suzhou 215006, Peoples R China
来源：
OPTICS LETTERS | 2018年 / 43卷 / 06期
基金：
加拿大自然科学与工程研究理事会; 芬兰科学院;
关键词：
BEAMS; LATTICES;
D O I：
10.1364/OL.43.001395
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We develop a general coherent (pseudo)-mode representation of partially coherent surface plasmon polaritons in the Kretschmann excitation geometry. We obtain explicit analytical results for coherent pseudo-modes of narrowband SPPs with Gaussian spectra and spectral correlations. We also evaluate the global degree of coherence of such SPPs which quantifies their overall coherence state within a given spatial domain. Not only will the developed coherent pseudo-mode representation facilitate SPP coherence state characterization, but it will also substantially reduce the computational complexity of the studies of partially coherent SPP interactions with nanoparticles. (C) 2018 Optical Society of America
引用
收藏
页码：1395 / 1398
页数：4
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