Common-path surface plasmon interferometer with radial polarization

被引：5

作者：

Zhang, Bei ^{[1
]}

Zhang, Chengqian ^{[1
]}

Somekh, Michael G. ^{[2
,3
]}

Yan, Peng ^{[1
]}

Wang, Le ^{[4
]}

机构：

[1] Beihang Univ, Dept Automat Sci & Elect Engn, Beijing 100191, Peoples R China

[2] Shenzhen Univ, Nanophoton Res Ctr, Shenzhen 518061, Peoples R China

[3] Univ Nottingham, Dept Elect & Elect Engn, Fac Engn, Nottingham NG7 2RD, England

[4] Renmin Univ China, Coll Phys, Beijing 100872, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 14期

基金：

中国国家自然科学基金;

关键词：

MICROSCOPY; RESONANCE; PHASE; AMPLITUDE; FIELD; BEAM; V(Z);

D O I：

10.1364/OL.43.003245

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a common-path surface plasmon interferometer with radial polarization. We show how the V(z) effect, the output of the microscope versus defocus z, can be derived utilizing a radially polarized illumination and a virtual annulus. The measurement of the V(z) effect gives a strong signature of the surface plasmon propagation, which is functionally related to the material properties. We discuss the advantages of using radial polarization compared to linear polarization. (c) 2018 Optical Society of America

引用

页码：3245 / 3248

页数：4

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