Dr. Mitsutaka Kumakura Profile

Dr. Mitsutaka Kumakura

at Univ of Fukui

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Author

Publications (9)

Proceedings Article | 20 September 2023 Paper

What will be done by optical manipulation of magnetically trapped superconducting micro-particles

Masaaki Ashida, Shota Sasaki, Jun Naoi, Masato Takamune, Daisei Kondo, Yuta Takahashi, Mitsutaka Kumakura, Yoshiki Moriwaki

Proceedings Volume 12606, 126060W (2023) https://doi.org/10.1117/12.3008353

KEYWORDS: Particles, Magnetism, Helium, Optical manipulation, Superconductors, Laser irradiation, Viscosity, Superconductivity, Indium, Quantum particles

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Proceedings Article | 15 June 2020 Paper

Observation of Mie scattering from a superconducting micro-particle

S. Sasaki, J. Naoi, M. Takanune, D. Kondo, M. Kumakura, M. Ashida, Y. Moriwaki

Proceedings Volume 11522, 115220P (2020) https://doi.org/10.1117/12.2573783

KEYWORDS: Particles, Superconductors, Helium, Mie scattering, Indium, Optical properties, Light scattering, Spherical lenses, Magnetism, Metals

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Proceedings Article | 15 June 2020 Paper

Manipulation of CdSe/ZnS quantum dots in room-temperature fluid with an inhomogeneous electric field and optical excitation

Mitsutaka Kumakura, Takayuki Shimomura, Riki Asano, Goro Nozue, Kiroku Yamamoto, Takeshi Moriyasu

Proceedings Volume 11522, 115220V (2020) https://doi.org/10.1117/12.2573798

KEYWORDS: Quantum dots, Capillaries, Dielectrophoresis, Excitons, Luminescence, Semiconductors, Particles, Finite element methods, Applied physics, CCD cameras

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Proceedings Article | 9 September 2019 Presentation

Optical manipulation of magnetically trapped superconducting micro particles in superfluid helium (Conference Presentation)

Masaaki Ashida, Jun Naoi, Masato Takamune, Yuta Takahashi, Shota Sasaki, Mitsutaka Kumakura, Yoshiuki Moriwaki

Proceedings Volume 11083, 110831G (2019) https://doi.org/10.1117/12.2529166

KEYWORDS: Particles, Superconductors, Helium, Optical manipulation, Laser ablation, Control systems, Superconductivity, Transparency, Motion controllers, Nanolithography

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Proceedings Article | 24 April 2018 Paper

Property of magnetic trapping of superconducting sub-micron particles

J. Naoi, Y. Takahashi, M. Takamune, Y. Nakamura, M. Kumakura, M. Ashida, F. Matsushima, Y. Moriwaki

Proceedings Volume 10712, 107120K (2018) https://doi.org/10.1117/12.2316795

KEYWORDS: Particles, Magnetism, Superconductors, Laser ablation, Helium, Rhenium, Superconductivity, Temperature metrology, CCD cameras, Indium

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Proceedings Article | 24 April 2018 Paper

Dispersion of quantum dots into gases toward their optical manipulation

Mitsutaka Kumakura, Asuka Kinan, Takeshi Moriyasu

Proceedings Volume 10712, 107121I (2018) https://doi.org/10.1117/12.2316339

KEYWORDS: Luminescence, Quantum dots, Optical manipulation, Light scattering, Gases, Nitrogen, Laser irradiation, Chemical elements, Diffusion, Spectroscopy

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Proceedings Article | 25 September 2017 Presentation

Optical fabrication and trapping of superconducting nanoparticles in superfluid helium (Conference Presentation)

Masaaki Ashida, Yosuke Minowa, Mitsutaka Kumakura, Yuta Takahashi, Fusakazu Matsushima, Yoshiki Moriwaki

Proceedings Volume 10347, 103471X (2017) https://doi.org/10.1117/12.2273278

KEYWORDS: Helium, Superconductors, Laser ablation, Superconductivity, Particles, Magnetism, Liquids, Metals, Nanoparticles, Transparency

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Proceedings Article | 18 April 2017 Paper

Property of magnetic trapping of superconducting sub-micron particles

Y. Takahashi, J. Naoi, K. Yamaguchi, M. Kumakura, M. Ashida, F. Matsushima, Y. Moriwaki

Proceedings Volume 10252, 102521H (2017) https://doi.org/10.1117/12.2279262

KEYWORDS: Particles, Magnetism, Superconductors, Rhenium, Laser ablation, Helium, Temperature metrology, Indium, Superconductivity, Spherical lenses

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Proceedings Article | 18 April 2017 Paper

Influence of dilution with organic solvents on emission spectra of CdSe/ZnS quantum dots

Mitsutaka Kumakura, Asuka Kinan, Takeshi Moriyasu

Proceedings Volume 10252, 1025219 (2017) https://doi.org/10.1117/12.2269436

KEYWORDS: Bioalcohols, Molecules, Atmospheric particles, Quantum efficiency, Optical manipulation, Zinc, Atmospheric optics, Quantum dots, Spectroscopy, Natural surfaces

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Showing 5 of 9 publications

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