
Proceedings Paper
Interferometric control of contact line, shape, and aberrations of liquid lensesFormat | Member Price | Non-Member Price |
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Paper Abstract
An optical system consisting of an aqueous electrolyte resting on a polymer/gold/indium-tin-oxide (ITO) layer
deposited onto a glass substrate is analyzed to acquire contact angle - focal distance data as a function of applied
voltage. The shape factor of a liquid lens and its dependence on the perimeter of contact line and contact angle was
analyzed in the presence of an electrical field applied between the electrolyte and planar electrode system. The contact
angle of a liquid on a thin, transparent film of gold (20 nm thick) - on ITO under electrolyte solution could be varied
from 110 ± 3° when the gold was held at -2.4 V to 41 ± 3° without voltage. The behavior of a water-based electrolyte
and water-soluble polymer blend and its influence on the shape of contact line and profile of the lens were investigated
by employing a holographic setup at wavelengths of 632.8 and 543.5 nm. Optical micrographs showing the profile of the
lens, aberration-less aperture, deformation of contact line, and shape of the liquid lens, respectively, were analyzed in
reflection and transmission. Both the advancing and receding contact angles were measured directly from digitized
images of the profile of the lens. The dynamic range of linear beam steering and dependence of the focal length of the
liquid lens on the applied voltage are discussed.
Paper Details
Date Published: 26 September 2007
PDF: 9 pages
Proc. SPIE 6714, Adaptive Coded Aperture Imaging and Non-Imaging Sensors, 67140J (26 September 2007); doi: 10.1117/12.746747
Published in SPIE Proceedings Vol. 6714:
Adaptive Coded Aperture Imaging and Non-Imaging Sensors
David P. Casasent; Timothy Clark, Editor(s)
PDF: 9 pages
Proc. SPIE 6714, Adaptive Coded Aperture Imaging and Non-Imaging Sensors, 67140J (26 September 2007); doi: 10.1117/12.746747
Show Author Affiliations
Igor Voitenko, Eclipse Energy Systems, Inc. (United States)
Ronald Storm, Eclipse Energy Systems, Inc. (United States)
Ronald Storm, Eclipse Energy Systems, Inc. (United States)
Raymond Westfall, Eclipse Energy Systems, Inc. (United States)
Stanley Rogers, Air Force Research Lab. (United States)
Stanley Rogers, Air Force Research Lab. (United States)
Published in SPIE Proceedings Vol. 6714:
Adaptive Coded Aperture Imaging and Non-Imaging Sensors
David P. Casasent; Timothy Clark, Editor(s)
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