Phase-only modulation with a twisted nematic liquid crystal display by means of equi-azimuth polarization states | Zendy

Vicente Durán | Zendy; Jesús Láncis | Zendy; Enrique Tajahuerce | Zendy; M. Fernandez Alonso | Zendy

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Phase-only modulation with a twisted nematic liquid crystal display by means of equi-azimuth polarization states

Author(s) -

Vicente Durán,

Jesús Láncis,

Enrique Tajahuerce,

M. Fernandez Alonso

Publication year - 2006

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.14.005607

Subject(s) - liquid crystal , polarizer , optics , azimuth , phase modulation , polarization (electrochemistry) , materials science , liquid crystal display , phase (matter) , modulation (music) , contrast ratio , physics , birefringence , phase noise , chemistry , acoustics , quantum mechanics

The capability of a twisted nematic liquid crystal display to generate a set of equi-azimuth polarization states is used to achieve a phase-only modulation regime. For this purpose, a liquid crystal display followed by a quarter-wave plate is launched between two polarizers. Theoretical support is provided by means of the Jones matrix calculus and the Poincaré sphere representation. Laboratory results for a commercial liquid crystal display are presented. A phase modulation deep of 270 masculine is obtained at 514 nm with a residual intensity variation which is lower than 2.5 %.

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