Optimized polarization-selective computer-generated hologram with fewer phase combinations | Zendy

Shaohua Tao | Zendy; Xiaocong Yuan | Zendy; W. S. Cheong | Zendy; J. Bu | Zendy; V.A. Kudryashov | Zendy

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Optimized polarization-selective computer-generated hologram with fewer phase combinations

Author(s) -

Shaohua Tao,

Xiaocong Yuan,

W. S. Cheong,

J. Bu,

V.A. Kudryashov

Publication year - 2003

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.11.001252

Subject(s) - holography , optics , computer generated holography , polarization (electrochemistry) , pixel , diffraction efficiency , binary number , diffraction , phase (matter) , computer science , materials science , physics , mathematics , chemistry , arithmetic , quantum mechanics

Normally, to incorporate two binary conventional computer-generated holograms (CGHs) into a single polarization-selective computer-generated hologram (PSCGH), the respective pixels of the conventional CGHs will result in 4 different combinations of the phase values. Thus, the 4 phase combinations have to be realized by 4 types of pixel structures in a PSCGH. In this paper, we propose a method to reduce the PSCGH's 4 phase combinations to 3 using an optimization approach. The PSCGH's first-order diffraction efficiency is 30% and the contrast ratio is 28 after the optimization.

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