Quickly updatable hologram images with high performance photorefractive polymer composites

Naoto Tsutsumi; Kenji Kinashi; Asato Nonomura; Wataru Sakai

doi:10.1117/12.913763

20 February 2012 Quickly updatable hologram images with high performance photorefractive polymer composites

Naoto Tsutsumi, Kenji Kinashi, Asato Nonomura, Wataru Sakai

Proceedings Volume 8258, Organic Photonic Materials and Devices XIV; 825816 (2012) https://doi.org/10.1117/12.913763
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We present here quickly updatable hologram images using high performance photorefractive (PR) polymer composite based on poly(N-vinyl carbazole) (PVCz). PVCz is one of the pioneer materials for photoconductive polymer. PVCz/7- DCST/CzEPA/TNF (44/35/20/1 by wt) gives high diffraction efficiency of 68 % at E = 45 V/μm with fast response speed. Response speed of optical diffraction is the key parameter for real-time 3D holographic display. Key parameter for obtaining quickly updatable hologram images is to control the glass transition temperature lower enough to enhance chromophore orientation. Object image of the reflected coin surface recorded with reference beam at 532 nm (green beam) in the PR polymer composite is simultaneously reconstructed using a red probe beam at 642 nm. Instead of using coin object, object image produced by a computer was displayed on a spatial light modulator (SLM) is used as an object for hologram. Reflected object beam from a SLM interfered with reference beam on PR polymer composite to record a hologram and simultaneously reconstructed by a red probe beam. Movie produced in a computer was recorded as a realtime hologram in the PR polymer composite and simultaneously clearly reconstructed with a video rate.

Citation Download Citation

Naoto Tsutsumi, Kenji Kinashi, Asato Nonomura, and Wataru Sakai "Quickly updatable hologram images with high performance photorefractive polymer composites", Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 825816 (20 February 2012); https://doi.org/10.1117/12.913763

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