Scientific Results

Investigation on specific solutions of Gerchberg-Saxton algorithm

Year: 2014

Authors: Memmolo P., Miccio L., Merola F., Paciello A., Embrione V., Fusco S., Ferraro P., Netti P.A.

Autors Affiliation: CNR-Istituto Nazionale di Ottica, via Campi Flegrei 34, 80078 Pozzuoli(NA), Italy; Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di tecnologia,Largo Barsanti e Matteucci 53, 80125 Napoli, Italy, Interdisciplinary Research Centre on Biomaterials(CRIB), University of Naples Federico II, Piazzale Tecchio 80, 80125 Napoli Italy

Abstract: The most popular method used to generate the Computer Generated Holograms (CGH) is the Gerchberg Saxton (GS) algorithm. GS computes an approximation of the desired beam shape, and consequently, some distortions may arise. Although many algorithms have been proposed, exact methods to overcome the problem completely do not yet exist. Here we show, for the first time to best of our knowledge, that in some specific configurations exact solutions of the GS algorithm can be achieved so as to produce a limited number of light intensity spots in a clean array. The basic concept is described and both numerical as well as experimental implementations are provided. (C) 2013 Elsevier Ltd. All rights reserved.

Journal/Review: OPTICS AND LASERS IN ENGINEERING

Volume: 52      Pages from: 206  to: 2011

KeyWords: Computer Generated Holograms; Holographic optical elements; Spatial light modulators
DOI: 10.1016/j.optlaseng.2013.06.008

Citations: 14
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