Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/327310
Type: Artigo
Title: Numerical Simulation Of Astigmatic Liquid Lenses Tuned By A Stripe Electrode
Author: Lima
N. C.; Cavalli
A.; Mishra
K.; Mugele
F.
Abstract: We propose a new design for tuning the astigmatism of liquid micro-lenses using electric field and hydrostatic pressure as control parameters. We explore the feasibility and operating range of the lens with a self-consistent numerical calculation of the electric field distribution and the shape of the two-phase interface. Equilibrium shapes, including surface profiles parallel and perpendicular to a stripe electrode, are extracted to determine the astigmatism. The wavefronts are decomposed into Zernike polynomials under zero defocus conditions using a commercial ray-tracing software. We observe that the global curvature of the lens is primarily controlled by the hydrostatic pressure, while asphericity and astigmatism are controlled by the electric field. For optimized electrode geometries and simultaneous control of pressure and electric fields the astigmatism can be tuned from Z6 = 0...0.38 mu m with minor changes in the focal length. (C)2016 Optical Society of America
Subject: Fluidic Lenses
Microlens
Field
Fabrication
Phoropter
Surfaces
Defocus
Optics
Length
Volume
Editor: Optical Soc Amer
Washington
Rights: fechado
Identifier DOI: 10.1364/OE.24.004210
Address: https://osapublishing.ez88.periodicos.capes.gov.br/oe/abstract.cfm?uri=oe-24-4-4210
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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