Angular momentum decomposition of nonparaxial light beams

被引：11

作者：

Martinez-Herrero, R. ^{[1
]}

Mejias, P. M. ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Ciencias Fis, Dept Opt, E-28040 Madrid, Spain

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 08期

关键词：

SPECTRUM;

D O I：

10.1364/OE.18.007965

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The total angular momentum per unit length of a general non-paraxial beam is decomposed into an orbital component associated with the spiral spectrum at the far field and a component concerning the balance between right- and left-handed circular-polarization content of the angular spectrum. Expressions for the linear momentum and energy per unit length are also provided. The well-known division into orbital and spin components is shown to be recovered in the paraxial limit. (C) 2010 Optical Society of America

引用

页码：7965 / 7971

页数：7

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