Share Email Print

Proceedings Paper

Measurement of the orbital angular momentum of an optical beam with the help of space-angle intensity moments
Author(s): Alexander Ya. Bekshaev; Andriy Yurievich Popov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An orbital angular momentum (OAM) of the optical beam is shown to be reflected in the special structure of its matrix of space-angle intensity moments. Considering the properties of these moments and their transformations, a conclusion has been made that any light beam with the OAM experiences a characteristic transverse shift during its interaction with a plane boundary or a diffraction grating. On this base, a method for the immediate measurement of the beam OAM is proposed. The simple experimental arrangement for such a measurement includes a self-collimating diffraction grating, a position-sensitive quadrant photodetector and a device for the beam rotation around its longitudinal axis.

Paper Details

Date Published: 5 February 2002
PDF: 9 pages
Proc. SPIE 4607, Selected Papers from Fifth International Conference on Correlation Optics, (5 February 2002); doi: 10.1117/12.455175
Show Author Affiliations
Alexander Ya. Bekshaev, Univ. Instelling Antwerpen and Odessa National Univ. (Ukraine)
Andriy Yurievich Popov, Odessa National Univ. (Ukraine)

Published in SPIE Proceedings Vol. 4607:
Selected Papers from Fifth International Conference on Correlation Optics
Oleg V. Angelsky, Editor(s)

© SPIE. Terms of Use
Back to Top