Radial polarization induced surface plasmon virtual probe for two-photon fluorescence microscopy

被引：62

作者：

Moh, K. J. ^{[1
]}

Yuan, X. -C. ^{[2
]}

Bu, J. ^{[2
]}

Zhu, S. W. ^{[3
]}

Gao, Bruce Z. ^{[4
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Nankai Univ, Inst Modern Opt, Key Lab Optoelect Informat Sci & Technol, Minist Educ China, Tianjin 300071, Peoples R China

[3] Tianjin Union Med Ctr, Tianjin 300121, Peoples R China

[4] Clemson Univ, Dept Bioengn, Clemson, SC 29634 USA

来源：

OPTICS LETTERS | 2009年 / 34卷 / 07期

基金：

新加坡国家研究基金会; 美国国家卫生研究院; 中国国家自然科学基金;

关键词：

POLARITONS; BEAMS; EXCITATION;

D O I：

10.1364/OL.34.000971

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Surface plasmons excited by a focused femtosecond radially polarized beam on a metal surface form a standing wave pattern with a sharp peak that can be used as a "virtual probe" for surface plasmon microscopy. The rotational symmetry of radially polarized light effectively provides the TM polarization required for coupling to the surface plasmons while the short pulse nature of the probe allows for nonlinear processes to be studied. (C) 2009 Optical Society of America

引用

页码：971 / 973

页数：3

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