Third-harmonic generation microscopy with tightly focused radial polarization

被引：20

作者：

Yang, Shuangyang ^{[1
]}

Zhan, Qiwen ^{[1
]}

机构：

[1] Univ Dayton, Electroopt Grad Program, Dayton, OH 45469 USA

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2008年 / 10卷 / 12期

关键词：

third-harmonic generation; microscopy; Gouy phase; radial polarization;

D O I：

10.1088/1464-4258/10/12/125103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Third-harmonic generation (THG) microscopy using tightly focused radially polarized light is studied numerically. Radial polarization illumination with and without an annular pupil plane mask is investigated. Our results show that a tightly focused radially polarized light with annular illumination can achieve a higher spatial resolution and an extended depth of focus. Under certain conditions, a detectable THG signal from a bulk medium can be obtained by tailoring the Gouy phase shift around the focal point.

引用

页数：6

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