Achromatic converter of a spatial distribution of polarization of light

An achromatic converter of spatial distribution of polarization from a first to a second predefined distribution of polarization is described. The converter comprises a plurality of photo-aligned quarter-wave or half-wave liquid crystal polymer layers, wherein the patterns of alignment of the layers...

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Bibliographic Details
Main Authors ZIEBA, JERRY, SHEMO, DAVID M
Format Patent
LanguageEnglish
French
German
Published 12.08.2009
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An achromatic converter of spatial distribution of polarization from a first to a second predefined distribution of polarization is described. The converter comprises a plurality of photo-aligned quarter-wave or half-wave liquid crystal polymer layers, wherein the patterns of alignment of the layers are correlated with each other so as to make polarization conversion achromatic. Achromatic polarization vortices can be formed. The polarization conversion efficiencies over 97% have been demonstrated over most of the visible spectrum of light. The polarization converters can be used in imaging, photolithography, optical tweezers, micromachining, and other applications.
Bibliography:Application Number: EP20080168035