title: Electrically switchable holographic liquid crystal/polymer Fresnel lens using a Michelson interferometer.
abstract: A holographic technique for fabricating an electrically switchable liquid crystal/polymer composite Fresnel lens is reported. A Michelson interferometer is used to produce the required Fresnel pattern, by placing a convex lens into one path of the interferometer. Simplicity of the method and the possibility of fabricating different focal length lenses in a single arrangement are advantages of the method. The performance of the fabricated lens was demonstrated and its electro-optical properties were investigated for its primary focal length.
authors.affiliation: Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Evin St., Tehran, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Jashnsaz
authors.forename: Ezeddin
authors.initials: E
authors.lastname: Mohajerani
authors.forename: Hossein
authors.initials: H
authors.lastname: Nemati
authors.forename: Seyed Hossein
authors.initials: SH
authors.lastname: Razavi
authors.forename: Isa Ahmad
authors.initials: IA
authors.lastname: Alidokht