Orbital angular momentum of the laser beam and the second order intensity moments

Chunqing Gao; Guanghui Wei; Horst Weber

doi:10.1007/BF02880068

Orbital angular momentum of the laser beam and the second order intensity moments

Chunqing Gao^*
, Guanghui Wei
, Horst Weber

^*此作品的通讯作者

光电学院

Beijing Institute of Technology
Technical University of Berlin

科研成果: 期刊稿件 › 文章 › 同行评审

18 引用（Scopus）

摘要

From the wave equation of a generalized beam the orbital angular momentum is studied. It is shown that the orbital angular momentum exists not only in the Laguerre-Gaussian beam, but in any beam with an angular-dependent structure. By calculating the second order intensity moments of the beam the relation between the orbital angular momentum and the second order moments 〈x θ_y〉, 〈y θ_x〉 is given. As an example the orbital angular momentum of the general astigmatic Gaussian beam is studied.

源语言	英语
页（从-至）	1306-1311
页数	6
期刊	Science in China, Series A: Mathematics
卷	43
期	12
DOI	https://doi.org/10.1007/BF02880068
出版状态	已出版 - 12月 2000

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abstract = "From the wave equation of a generalized beam the orbital angular momentum is studied. It is shown that the orbital angular momentum exists not only in the Laguerre-Gaussian beam, but in any beam with an angular-dependent structure. By calculating the second order intensity moments of the beam the relation between the orbital angular momentum and the second order moments 〈x θy〉, 〈y θx〉 is given. As an example the orbital angular momentum of the general astigmatic Gaussian beam is studied.",

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N2 - From the wave equation of a generalized beam the orbital angular momentum is studied. It is shown that the orbital angular momentum exists not only in the Laguerre-Gaussian beam, but in any beam with an angular-dependent structure. By calculating the second order intensity moments of the beam the relation between the orbital angular momentum and the second order moments 〈x θy〉, 〈y θx〉 is given. As an example the orbital angular momentum of the general astigmatic Gaussian beam is studied.

AB - From the wave equation of a generalized beam the orbital angular momentum is studied. It is shown that the orbital angular momentum exists not only in the Laguerre-Gaussian beam, but in any beam with an angular-dependent structure. By calculating the second order intensity moments of the beam the relation between the orbital angular momentum and the second order moments 〈x θy〉, 〈y θx〉 is given. As an example the orbital angular momentum of the general astigmatic Gaussian beam is studied.

KW - Beam characterization

KW - Orbital angular momentum

KW - Second order moments

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Orbital angular momentum of the laser beam and the second order intensity moments

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