5 February 2002 Measurement of the orbital angular momentum of an optical beam with the help of space-angle intensity moments
Author Affiliations +
Proceedings Volume 4607, Selected Papers from Fifth International Conference on Correlation Optics; (2002) https://doi.org/10.1117/12.455175
Event: Fifth International Conference on Correlation Optics, 2001, Chernivsti, Ukraine
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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander Ya. Bekshaev, Alexander Ya. Bekshaev, Andriy Yurievich Popov, Andriy Yurievich Popov, } "Measurement of the orbital angular momentum of an optical beam with the help of space-angle intensity moments", Proc. SPIE 4607, Selected Papers from Fifth International Conference on Correlation Optics, (5 February 2002); doi: 10.1117/12.455175; https://doi.org/10.1117/12.455175
PROCEEDINGS
9 PAGES


SHARE
RELATED CONTENT


Back to Top