Scientific Results

Fresnel entropic characterization of optical Laguerre-Gaussian beams

Year: 2011

Authors: De Nicola S., Fedele R., Manko M.A., Manko V.I.

Autors Affiliation: CNR – Istituto Nazionale di Ottica, Comprensorio A. Olivetti Fabbr. 70, Via Campi Flegrei 34, I-80078 Pozzuoli (NA), Italy;
Dipartimento di Scienze Fisiche, Università Federico II, I-80126 Napoli, Italy;
INFN Sezione di Napoli, Complesso Universitario di M.S. Angelo, via Cintia, I-80126 Napoli, Italy;
P.N. Lebedev Physical Institute, Leninskii Prospect 53, Moscow 119991, Russia

Abstract: A novel approach, based on Fresnel tomography, to determine the entropy of two-dimensional optical Laguerre-Gaussian beams is presented and discussed. Numerical evaluations of the entropy distribution in the phase space associated with Laguerre-Gauss modes are presented. It is shown that the concept of Fresnel entropy provides a general criterion for studying and characterizing the vorticity of Laguerre-Gauss modes. (C) 2010 Elsevier B.V. All rights reserved.


Volume: 375 (6)      Pages from: 961  to: 965

More Information: M.A.M. and V.I.M. were partially supported by the Russian Foundation for Basic Research under Projects Nos. 10-02-00312 and 09-02-00142, respectively.
KeyWords: Fresnel tomography; Tomographic entropy; Fresnel entropy; Laguerre-Gaussian beams;
DOI: 10.1016/j.physleta.2010.12.078

Citations: 1
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