Zhu, Jiangbo, Chen, Yujie, Zhang, Yanfeng, Cai, Xinlun and Yu, Siyuan (2014) Spin and orbital angular momentum and their conversion in cylindrical vector vortices. Optics Letters, 39 (15). p. 4435. ISSN 0146-9592
|
Text
accepted_manuscript.pdf - Accepted Version Download (1MB) | Preview |
Abstract
The generation of light beams carrying orbital angular momentum (OAM) has been greatly advanced with the emergence of the recently reported integrated optical vortex emitters. Generally, optical vortices emitted by these devices possess cylindrically symmetric states of polarization and spiral phase fronts, and they can be defined as cylindrical vector vortices (CVVs). Using the radiation of angularly arranged dipoles to model the CVVs, these beams as hybrid modes of two circularly polarized scalar vortices are theoretically demonstrated to own well-defined total angular momentum. Moreover, the effect of spin-orbit interactions of angular momentum is identified in the CVVs when the size of the emitting structure varies. This effect results in the diminishing spin component of angular momentum and purer OAM states at large structure radii.
| Item Type: | Article |
|---|---|
| Subjects: | F300 Physics F900 Others in Physical Sciences |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Rachel Branson |
| Date Deposited: | 01 Jun 2020 13:10 |
| Last Modified: | 31 Jul 2021 17:46 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/43287 |
Actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
