Abstract

The degree of paraxiality (DOP) is a quantification of how paraxial (or nonparaxial) a light field is. In this article, we study the DOP of a partially coherent beam with a nonconventional spatial correlation function and explore the correlation-induced changes of the DOP. Analytical expressions for the DOP and the far-field divergence angle of a generalized multi-Gaussian correlated Schell-model (MGCSM) beam are derived. The properties of the DOP and the far-field divergence angle for the first type and the second type of generalized MGCSM beams without and with truncation in free space are illustrated numerically, and we find that the DOP and far-field divergence angle are closely related with the distribution of the correlation function. Modulation of the correlation function provides a novel way for modulating the nonparaxial properties of a partially coherent beam.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Degree of paraxiality of a partially coherent field

Fei Wang, Yangjian Cai, and Olga Korotkova
J. Opt. Soc. Am. A 27(5) 1120-1126 (2010)

Degree of paraxiality of an electromagnetic multi-Gaussian Schell-model beam

Ziyuan Wang, Zhenfei Jiang, Xiaoling Ji, and Tao Wang
J. Opt. Soc. Am. A 36(6) 1033-1038 (2019)

Degree of paraxiality of an anisotropic generalized multi-Gaussian Schell-model beam

Li Zhu, Zhenfei Jiang, Ke Cheng, and Tao Wang
J. Opt. Soc. Am. A 35(6) 1034-1038 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (21)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription