Abstract

The definition of the orbital angular momentum established for coherent beams is extended to partially coherent beams, expressed in terms of two elements of the beam matrix. This extension is justified by use of the Mercer expansion of partially coherent fields. General Gauss–Schell-model fields are considered, and the relation between the twist parameter and the orbital angular momentum is analyzed.

© 2001 Optical Society of America

Fast calculation of orbital angular momentum flux density of partially coherent Schell-model beams on propagation

Haiyun Wang, Zhaohui Yang, Lin Liu, Yahong Chen, Fei Wang, and Yangjian Cai
Opt. Express 30(10) 16856-16872 (2022)

Measurement of the coherence-orbital angular momentum matrix of a partially coherent beam

Zhaohui Yang, Haiyun Wang, Yahong Chen, Fei Wang, Greg Gbur, Olga Korotkova, and Yangjian Cai
Opt. Lett. 47(17) 4467-4470 (2022)

Measurement of the orbital angular momentum spectrum of partially coherent beams

H. Di Lorenzo Pires, J. Woudenberg, and M. P. van Exter
Opt. Lett. 35(6) 889-891 (2010)

Partially coherent nonparaxial beams

Kailiang Duan and Baida Lü
Opt. Lett. 29(8) 800-802 (2004)

Changes in orbital angular momentum distribution of a twisted partially coherent array beam in anisotropic turbulence

Jing Wang, Yakai Zhang, Yinlong Guo, Xianmei Qian, Wenyue Zhu, and Jinhong Li
Opt. Express 30(20) 36665-36677 (2022)