Comparison of nematic liquid-crystal and DMD based spatial light modulation in complex photonics

Turtaev, S., Leite, I. T., Mitchell, K. J., Padgett, M. J. , Phillips, D. B. and Čižmár, T. (2017) Comparison of nematic liquid-crystal and DMD based spatial light modulation in complex photonics. Optics Express, 25(24), pp. 29874-29884. (doi:10.1364/OE.25.029874)

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Abstract

Digital micro-mirror devices (DMDs) have recently emerged as practical spatial light modulators (SLMs) for applications in photonics, primarily due to their modulation rates, which exceed by several orders of magnitude those of the already well-established nematic liquid crystal (LC)-based SLMs. This, however, comes at the expense of limited modulation depth and diffraction efficiency. Here we compare the beam-shaping fidelity of both technologies when applied to light control in complex environments, including an aberrated optical system, a highly scattering layer and a multimode optical fibre. We show that, despite their binary amplitude-only modulation, DMDs are capable of higher beam-shaping fidelity compared to LC-SLMs in all considered regimes

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles and Phillips, Dr David and Mitchell, Mr Kevin
Authors: Turtaev, S., Leite, I. T., Mitchell, K. J., Padgett, M. J., Phillips, D. B., and Čižmár, T.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087
Published Online:15 November 2017
Copyright Holders:Copyright © 2017 Optical Society of America
First Published:First published in Optics Express 25(24): 29874-29884
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
6672319UK Quantum Technology Hub in Enhanced Quantum ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/M01326X/1S&E P&A - PHYSICS & ASTRONOMY
624501TWISTS - Twists & more: the complex shape of lightMiles PadgettEuropean Research Council (ERC)340507S&E P&A - PHYSICS & ASTRONOMY

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