Focusing of high numerical aperture cylindrical-vector beams

被引：1570

作者：

Youngworth, KS ^{[1
]}

Brown, TG ^{[1
]}

机构：

[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

来源：

OPTICS EXPRESS | 2000年 / 7卷 / 02期

关键词：

D O I：

10.1364/OE.7.000077

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cylindrical-vector beams are of increasing recent interest for their role in novel laser resonators and their applications to electron acceleration and scanning microscopy. In this paper, we calculate cylindrical-vector fields, near the focal region of an aplanatic lens, and briefly discuss some applications. We show that, in the particular case of a tightly focused, radially polarized beam, the polarization shows large inhomogeneities in the focal region, while the azimuthally polarized beam is purely transverse even at very high numerical apertures. (C) 2000 Optical Society of America.

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页码：77 / 87

页数：11

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