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Materials 2012, 5(9), 1546-1559; doi:10.3390/ma5091546

Adaptive Holography in Liquid Crystal Light-Valves

1
INLN, Université de Nice-Sophia Antipolis, CNRS,1361 route des Lucioles, 06560 Valbonne, France
2
Jphopto, 20 Rue Campo Formio, 75013 Paris, France
*
Author to whom correspondence should be addressed.
Received: 18 July 2012 / Revised: 13 August 2012 / Accepted: 20 August 2012 / Published: 27 August 2012
(This article belongs to the Special Issue Advanced Materials for Modern Holographic Applications)
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Abstract

By performing two-wave mixing experiments in a liquid crystal light-valve, optical beam amplification is obtained as a strongly resonant process to which a narrow frequency bandwidth is associated. This property is exploited to realize adaptive holographic interferometric systems able to efficiently detect displacements as small as fraction of picometers. Pressure radiation induced deformations of a reflecting membrane are measured with the same type of system. Then, when used with complex wavefronts, like speckle fields, the LCLV-based interferometer allows to detect extremely small phase modulations. The examples shown demonstrate the potentialities of the light-valve for dynamic holography applications.
Keywords: adaptive holography; liquid crystals; picometer detection adaptive holography; liquid crystals; picometer detection
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Bortolozzo, U.; Residori, S.; Huignard, J.-P. Adaptive Holography in Liquid Crystal Light-Valves. Materials 2012, 5, 1546-1559.

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