A simple holographic technic for fabricating a LC/polymer switchable Fresnel lens

In this article, we report on a novel technique for fabricating an electrically switchable Fresnel lens made from liquid-crystal–polymer composite. The Fresnel pattern is formed by means of interference between two planar and spherical wavefronts reflected from a single plano-convex lens. The simpli...

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Bibliographic Details
Published in:Europhysics letters 2009-09, Vol.87 (6), p.64001
Main Authors: Nemati, H, Mohajerani, E, Moheghi, A, Behzadi Rad, M, Hosain Nataj, N
Format: Article
Language:English
Subjects:
42.40.Eq
42.70.Df
42.70.Ln
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Summary:In this article, we report on a novel technique for fabricating an electrically switchable Fresnel lens made from liquid-crystal–polymer composite. The Fresnel pattern is formed by means of interference between two planar and spherical wavefronts reflected from a single plano-convex lens. The simplicity of the procedure and capability to fabricate different focal lengths with the same arrangement are the unique advantages of this technique.
ISSN:0295-5075
1286-4854
DOI:10.1209/0295-5075/87/64001