The focus of light-linear polarization breaks the rotational symmetry of the focal spot

被引：124

作者：

Dorn, R ^{[1
]}

Quabis, S ^{[1
]}

Leuchs, G ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Zentrum Moderne Opt, D-91058 Erlangen, Germany

来源：

JOURNAL OF MODERN OPTICS | 2003年 / 50卷 / 12期

关键词：

D O I：

10.1080/0950034031000095812

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally demonstrate for the first time that a linearly polarized beam is focused to an asymmetric spot when using a high-numerical aperture focusing system. This asymmetry was predicted by Richards and Wolf in 1959 and can only be measured when a polarization-insensitive sensor is placed in the focal region. We used a specially modified photodiode in a knife-edge-type set-up to obtain highly resolved images of the total electric energy density distribution at the focus. The results are in good agreement with the predictions of a vectorial focusing theory.

引用

页码：1917 / 1926

页数：10

共 27 条

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