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Proceedings Paper

Improvement of image quality of phase-only hologram using random phase-free method: verification by simulation and optical experiments
Author(s): Yumi Yamaguchi; Yuki Nagahama; Yota Yamamoto; Tomoyoshi Shimobaba; Takashi Kakue; Tomoyoshi Ito
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Paper Abstract

One hologram calculation method is the random phase-free method. When this method is used for an amplitude hologram, a reproduced image with a high-quality image can be obtained. However, when the random phase-free method is used for the kinoform, the reproduced image is degraded. In this study, we applied the kinoform encoding method proposed by Li to the random phase-free method to improve the reproduced image. The effectiveness of the proposed method was compared with that of the conventional method via simulations and optical experiments. Additionally, the parameters were optimized by the simulations, and the effectiveness was verified by numerical experiments.

Paper Details

Date Published: 1 April 2020
PDF: 12 pages
Proc. SPIE 11353, Optics, Photonics and Digital Technologies for Imaging Applications VI, 113530P (1 April 2020);
Show Author Affiliations
Yumi Yamaguchi, Chiba Univ. (Japan)
Yuki Nagahama, Tokyo Univ. of Agriculture and Technology (Japan)
Yota Yamamoto, Chiba Univ. (Japan)
Tomoyoshi Shimobaba, Chiba Univ. (Japan)
Takashi Kakue, Chiba Univ. (Japan)
Tomoyoshi Ito, Chiba Univ. (Japan)

Published in SPIE Proceedings Vol. 11353:
Optics, Photonics and Digital Technologies for Imaging Applications VI
Peter Schelkens; Tomasz Kozacki, Editor(s)

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