Determination of the total angular momentum of a paraxial beam

被引：27

作者：

Molina-Terriza, Gabriel ^{[1
]}

机构：

[1] ICREA, Barcelona 08010, Spain

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 05期

关键词：

Laser beams - Electromagnetic fields;

D O I：

10.1103/PhysRevA.78.053819

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The multipolar solution of the electromagnetic field is useful in light-matter interactions. Here is presented a method to control the superpositions of multipolar electromagnetic fields using paraxial beams. This is applied to orbital angular momentum paraxial modes, which allow us to calculate their total angular momentum. This quantity plays an important role in the control of electronic transitions in atoms and molecules. The results here can easily be extended to highly focused laser beams.

引用

页数：5

共 25 条

[1] Mechanism of angular momentum exchange between molecules and Laguerre-Gaussian beams [J].