Dr. Ken-ichi Yuyama Profile

Dr. Ken-ichi Yuyama

at Osaka Metropolitan Univ

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 30 September 2024 Presentation

Cyanobacteria suspension microdot array with optical vortex induced forward transfer

Kaito Sato, Tetsuya Fukuda, Ken-ichi Yuyama, Mitsumasa Hanaoka, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume PC13126, PC1312607 (2024) https://doi.org/10.1117/12.3027346

KEYWORDS: Printing, Optical vortices, Cyanobacteria, Optical arrays, Wavefronts, Tissue engineering, Spatial resolution, Polyethylene glycol, Optical lithography, Laser applications

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Proceedings Article | 5 October 2023 Presentation

Micropatterning of hemispherical lasing droplets by optical vortex laser-induced forward transfer

Ken-ichi Yuyama, Haruki Kawaguchi, Rong Wei, Takashige Omatsu

Proceedings Volume PC12663, PC126630B (2023) https://doi.org/10.1117/12.2676638

KEYWORDS: Optical vortices, Laser optics, Satellites, Light sources and illumination, Water, Viscosity, Printing, Liquids, Laser irradiation, High speed cameras

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Proceedings Article | 20 September 2023 Paper

Core-shell droplet formation of a temperature-responsive ionic liquid by a near-infrared focused laser beam

Maho Tanaka, Yasuyuki Tsuboi, Ken-ichi Yuyama

Proceedings Volume 12606, 126060U (2023) https://doi.org/10.1117/12.3008350

KEYWORDS: Laser irradiation, Optical tweezers, Optical transmission, Liquids, Fluorescence, Mixtures, Image transmission, Dyes, Molecules, Fluorescence imaging

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Proceedings Article | 20 September 2023 Paper

Mechanisms of neuronal stimulation with a focused nanosecond optical vortex

Yumi Segawa, Yasushi Tanimoto, Ken-ichi Yuyama, Wataru Minoshima, Kyoko Masui, Takashige Omatsu, Chie Hosokawa

Proceedings Volume 12606, 126061H (2023) https://doi.org/10.1117/12.3008385

KEYWORDS: Optical vortices, Laser irradiation, Gaussian beams, Diffusion, Beam diameter, Neurons, Fluorescence, Laser ablation, Molecules, Fluorescence intensity

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Proceedings Article | 20 September 2023 Paper

High-definition direct print of perfect circle Au microdots by optical vortex induced forward transfer

Rong Wei, Haruki Kawaguchi, Kanta Takahashi, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume 12606, 126060V (2023) https://doi.org/10.1117/12.3008352

KEYWORDS: Printing, Optical vortices, Gold, Beam diameter, Gold nanoparticles, Inkjet technology, Gaussian beams, Wavefronts, Viscosity, Printed electronics

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Proceedings Article | 17 March 2023 Presentation

Metallic microdots patterning with laser-induced forward transfer

Haruki Kawaguchi, Kanta Takahashi, Rong Wei, Keisaku Yamane, Ryuji Morita, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Nobuyuki Aoki, Takashige Omatsu

Proceedings Volume PC12408, PC124080H (2023) https://doi.org/10.1117/12.2651259

KEYWORDS: Optical lithography, Optical vortices, Wavefronts, Nanoparticles, Inkjet technology, Gold, Spatial resolution, Pulsed laser operation, Printing, Photonics

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Proceedings Article | 8 December 2022 Paper

Direct print of close-packed gold nanoparticle microdots with optical vortex illumination

Haruki Kawaguchi, Kanta Takahashi, Rong Wei, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Ryuji Morita, Nobuyuki Aoki, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume 12479, 124790J (2022) https://doi.org/10.1117/12.2659014

KEYWORDS: Optical vortices, Gold, Nanoparticles, Laser applications, Gaussian beams, Liquids, Wavefronts, Printing, Glasses, Electronic components

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Proceedings Article | 8 December 2022 Paper

Microprinting of fluorescent dye droplets by optical vortex laser induced forward transfer

Ken-ichi Yuyama, Haruki Kawaguchi, Kei Umesato, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume 12479, 124790C (2022) https://doi.org/10.1117/12.2658793

KEYWORDS: Optical vortices, Receivers, Pulsed laser operation, Laser optics, Rhodamine B, Photomicroscopy, Spiral phase plates, Optical lithography, Gaussian beams, Liquids

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Proceedings Article | 9 March 2022 Presentation

2D micropatterning of fluorescent dye droplets by optical vortex laser induced forward transfer

Ken-ichi Yuyama, Takashige Omatsu

Proceedings Volume PC12017, PC120170X (2022) https://doi.org/10.1117/12.2607984

KEYWORDS: Optical vortices, Laser optics, Thin films, Pulsed laser operation, Glasses, Spiral phase plates, Liquids, Laser ablation, Gaussian beams

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Proceedings Article | 27 October 2021 Paper

Incoherent optical tweezer on a nanostructured rare metal

Yasuyuki Tsuboi, Sayaka Hashimoto, Ryota Takao, Ken-Ichi Yuyama, Tatsuya Shoji

Proceedings Volume 11926, 1192613 (2021) https://doi.org/10.1117/12.2616169

KEYWORDS: Optical tweezers, Nanostructuring, Particles, Polymers, Metals, Mercury, Nanostructures, Lamps, Ultraviolet radiation, Silicon

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Proceedings Article | 27 October 2021 Paper

Optical trapping of amyloid fibrils of hen egg-white lysozyme

Ken-ichi Yuyama, Mai Miyazaki, Yasuyuki Tsuboi

Proceedings Volume 11926, 119260C (2021) https://doi.org/10.1117/12.2616028

KEYWORDS: Luminescence, Proteins, Near infrared, Optical tweezers, Laser irradiation, Switching, Optical trapping, Imaging spectroscopy, Spherical lenses, Molecules

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Proceedings Article | 27 October 2021 Paper

Optical vortex induced microdroplet with a plasmonic nanocore

Haruki Kawaguchi, Kei Umesato, Kanta Takahashi, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Takadhige Omatsu

Proceedings Volume 11926, 119260G (2021) https://doi.org/10.1117/12.2616033

KEYWORDS: Plasmonics, Optical vortices, Nanoparticles, Gold, Receivers, Particles, Liquids, Diffraction, Spatial resolution, Laser applications

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Proceedings Article | 15 June 2020 Paper

Spatio-temporally-controlled synthesis of lead halide perovskite crystals by laser trapping

Ken-ichi Yuyama, Islam Md Jahidul, Vasudevanpillai Biju

Proceedings Volume 11522, 115220M (2020) https://doi.org/10.1117/12.2573760

KEYWORDS: Crystals, Laser crystals, Perovskite, Optical trapping, Lead, Interfaces, Near infrared, Absorption, Crystallography, Laser irradiation

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Proceedings Article | 15 June 2020 Paper

Microscale perovskite crystal creation by optical vortex laser induced forward transfer

Haruki Kawaguchi, Kei Umesato, Ken-ichi Yuyama, Katsuhiko Miyamoto, Takashige Omatsu

Proceedings Volume 11522, 1152215 (2020) https://doi.org/10.1117/12.2573524

KEYWORDS: Crystals, Perovskite, Optical vortices, Laser optics, Luminescence, Receivers, Laser crystals, Crystal optics, Laser applications, Lead

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Proceedings Article | 16 September 2016 Presentation + Paper

Light propagation in optical trapping assembling of colloidal particles at an interface

T. Kudo, S. Wang, K. Yuyama, H. Masuhara

Proceedings Volume 9922, 99221R (2016) https://doi.org/10.1117/12.2235272

KEYWORDS: Particles, Optical tweezers, Interfaces, Geometrical optics, Crystals, Laser crystals, Molecular assembly, Multiple scattering, Glasses, Nanoparticles

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Proceedings Article | 25 August 2015 Paper

Laser trapping and assembling of nanoparticles at solution surface studied by reflection micro-spectroscopy

Shun-Fa Wang, Ken-ichi Yuyama, Teruki Suigiyama, Hiroshi Masuhara

Proceedings Volume 9548, 954821 (2015) https://doi.org/10.1117/12.2187636

KEYWORDS: Nanoparticles, Reflection, Nanolithography, Optical tweezers, Imaging spectroscopy, Backscatter, Laser irradiation, CCD cameras, Crystals, Laser scattering

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Proceedings Article | 12 September 2013 Paper

Laser trapping dynamics of 200 nm-polystyrene particles at a solution surface

Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 8810, 88101V (2013) https://doi.org/10.1117/12.2023020

KEYWORDS: Nanoparticles, Optical trapping, Crystals, Particles, Laser crystals, Laser irradiation, Halogens, Lamps, Continuous wave operation, Near infrared

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Proceedings Article | 10 October 2012 Paper

Laser trapping dynamics of L-alanine depending on the laser polarization

Ken-ichi Yuyama, Kei Ishiguro, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 8458, 84582D (2012) https://doi.org/10.1117/12.929381

KEYWORDS: Crystals, Laser crystals, Polarization, Liquid crystals, Optical trapping, Crystallography, Molecular lasers, Liquid crystal lasers, Molecules, Optical tweezers

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Proceedings Article | 28 August 2010 Paper

Single droplet formation and crystal growth in urea solution induced by laser trapping

Ken-ichi Yuyama, Kei Ishiguro, Thitiporn Rungsimanon, Teruki Sugiyama, Hiroshi Masuhara

Proceedings Volume 7762, 776236 (2010) https://doi.org/10.1117/12.860241

KEYWORDS: Crystals, Urea, Laser crystals, Optical trapping, Molecules, Liquids, Convection, Laser irradiation, Interfaces, Molecular lasers

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Showing 5 of 19 publications

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