Pixel Apodization for the Suppression of Higher Diffractive Orders in Computer Holography

Joanna Starobrat, Michal Makowski

Abstract

Demand for a next generation of head-up displays have increased the demand for the applicable holographic displays. From the available spatial light modulators (SLM), Liquid Crystal on Silicon (LCoS) SLMs are the most popular for the simplicity of addressing and their relatively low costs. However, improving its efficiency demands reduction of higher diffraction orders. In this work we propose a new solution, that is the pixel apodization as the means to redirect the light intensity from the undesirable images to the main image. The higher diffraction orders are the result of the rectangular shape of the pixels of the SLM, as it can be concluded from the Fourier Transform (FT) analysis. Hence we exploit the known property that a Gaussian function is, up to a constant multiple, its own FT. The presented simulations support the theoretical conclusions, as the apodization allows for a significant lowering of the intensity of the third and higher diffraction orders, in the same time increasing the intensity directed to the main image.

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Paper Citation


in Harvard Style

Starobrat J. and Makowski M. (2018). Pixel Apodization for the Suppression of Higher Diffractive Orders in Computer Holography.In Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-286-8, pages 160-165. DOI: 10.5220/0006551901600165


in Bibtex Style

@conference{photoptics18,
author={Joanna Starobrat and Michal Makowski},
title={Pixel Apodization for the Suppression of Higher Diffractive Orders in Computer Holography},
booktitle={Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2018},
pages={160-165},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006551901600165},
isbn={978-989-758-286-8},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Pixel Apodization for the Suppression of Higher Diffractive Orders in Computer Holography
SN - 978-989-758-286-8
AU - Starobrat J.
AU - Makowski M.
PY - 2018
SP - 160
EP - 165
DO - 10.5220/0006551901600165