Dr. Koichi Umemoto Profile

Dr. Koichi Umemoto

at Daicel Corp

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Author

Publications (3)

Proceedings Article | 24 May 2022 Paper

Nanodiamond-based nanoparticle-polymer composite gratings with extremely large neutron refractive index modulation

Elhoucine Hadden, Yuko Iso, Atsushi Kume, Koichi Umemoto, Tobias Jenke, Martin Fally, Jürgen Klepp, Yasuo Tomita

Proceedings Volume 12151, 1215109 (2022) https://doi.org/10.1117/12.2623661

KEYWORDS: Diffraction, Diffraction gratings, Modulation, Scattering, Composites, Holography, Refractive index, Light scattering

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Proceedings Article | 1 April 2020 Presentation + Paper

Nanodiamond-polymer composite gratings as diffractive optical elements for light and neutrons I: their fabrication and light optical diffraction properties

Yasuo Tomita, Akihisa Kageyama, Yuki Iso, Koichi Umemoto, Ming Liu, Jürgen Klepp, Christian Pruner, Tobias Jenke, Peter Geltenbort, Martin Fally

Proceedings Volume 11367, 113670M (2020) https://doi.org/10.1117/12.2555651

KEYWORDS: Neodymium, Diffraction gratings, Nanoparticles, Holography, Diffraction, Polymers, Composites, Refractive index, Absorption, Scattering

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Proceedings Article | 1 April 2020 Paper

Nanodiamond-polymer composite gratings as diffractive optical elements for light and neutrons II: neutron optical diffraction properties

Martin Fally, Jürgen Klepp, Christian Pruner, Tobias Jenke, Peter Geltenbort, Akihisa Kageyama, Yuko Iso, Koichi Umemoto, Ming Liu, Yasuo Tomita

Proceedings Volume 11367, 113670N (2020) https://doi.org/10.1117/12.2555474

KEYWORDS: Optics, Holographic materials, Photopolymers, Nanoparticles, Diffraction, Diffraction gratings, Composites, Beam splitters, Diffractive optical elements, Polymers

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