Optimisation of arbitrary light beam generation with spatial light modulators

Radwell, N., Offer, R., Selyem, A. and Franke-Arnold, S. (2017) Optimisation of arbitrary light beam generation with spatial light modulators. Journal of Optics, 19(9), 095605. (doi:10.1088/2040-8986/aa7f50)

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Abstract

Phase only spatial light modulators (SLMs) have become the tool of choice for shaped light generation, allowing the creation of arbitrary amplitude and phase patterns. These patterns are generated using digital holograms and are useful for a wide range of applications as well as for fundamental research. There have been many proposed methods for optimal generation of the digital holograms, all of which perform well under ideal conditions. Here we test a range of these methods under specific experimental constraints, by varying grating period, filter size, hologram resolution, number of phase levels, phase throw and phase nonlinearity. We model beam generation accuracy and efficiency and show that our results are not limited to the specific beam shapes, but should hold for general beam shaping. Our aim is to demonstrate how to optimise and improve the performance of phase-only SLMs for experimentally relevant implementations.

Item Type:Articles
Keywords:Spatial light modulators, beam shaping, diffractive optics.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Franke-Arnold, Professor Sonja and Radwell, Dr Neal and Selyem, Mr Adam
Authors: Radwell, N., Offer, R., Selyem, A., and Franke-Arnold, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Optics
Journal Name:Journal of Optics
Journal Abbr.:.J. Opt.
Publisher:Institute of Physics Publishing Ltd.
ISSN:2040-8978
ISSN (Online):2040-8986
Published Online:12 July 2017
Copyright Holders:Copyright © 2017 IOP Publishing Ltd
First Published:First published in Journal of Optics 19(9): 095605
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
637131Quantum memory and processing of orbital angular momentum information in atomic gassesSonja Franke-ArnoldLeverhulme Trust (LEVERHUL)RPG-2013-386S&E P&A - PHYSICS & ASTRONOMY