A simple formulation for rewritable Bragg holograms with angle and polarization multiplicity

Tomiki Ikeda; Atsushi Shishido

doi:10.1117/12.683484

15 September 2006 A simple formulation for rewritable Bragg holograms with angle and polarization multiplicity

Tomiki Ikeda, Atsushi Shishido

Proceedings Volume 6332, Liquid Crystals X; 63320S (2006) https://doi.org/10.1117/12.683484
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Holography is one of the most promising techniques that enables ultra-high density optical data storage with a simple and small optical setup. The key component in holographic devices is a holographic material that meets various requirements such as high diffraction efficiency, fast response, and stability. Furthermore, additional problems, rewritability and reversibility, must be solved in rewritable holographic materials which are more convenient. In this paper, we successfully achieved rewritable holograms with 55 multiplicities by a simple formulation of optically transparent copolymer films containing azobenzene and mesogenic moieties. The recorded hologram was stable for more than six months and was rewritable over 300 times. In addition, holograms with angle and polarization multiplicity were recorded by controlling the incident angle and the polarization direction of writing beams independently.

Citation Download Citation

Tomiki Ikeda and Atsushi Shishido "A simple formulation for rewritable Bragg holograms with angle and polarization multiplicity", Proc. SPIE 6332, Liquid Crystals X, 63320S (15 September 2006); https://doi.org/10.1117/12.683484

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