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Proceedings Paper

Optical fabrication and trapping of superconducting nanoparticles in superfluid helium (Conference Presentation)
Author(s): Masaaki Ashida; Yosuke Minowa; Mitsutaka Kumakura; Yuta Takahashi; Fusakazu Matsushima; Yoshiki Moriwaki
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Paper Abstract

Superfluid helium having extremely low temperature, negligibly small viscosity, and huge thermal conductivity provides us a unique opportunity to generate a novel cryogenic space for the fabrication of nanostructures and the manipulation of their motion. Here we fabricated metallic nano- and micro-particles by laser ablation in superfluid helium and selectively trapped superconducting particles with a quadrupole magnetic field utilizing perfect diamagnetism caused by Meissner effect. We also discuss the size dependence of the superconducting transition temperatures of the trapped metallic particles by changing the temperature of liquid helium.

Paper Details

Date Published: 25 September 2017
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Proc. SPIE 10347, Optical Trapping and Optical Micromanipulation XIV, 103471X (25 September 2017); doi: 10.1117/12.2273278
Show Author Affiliations
Masaaki Ashida, Osaka Univ. (Japan)
Yosuke Minowa, Osaka Univ. (Japan)
Mitsutaka Kumakura, Univ. of Fukui (Japan)
Yuta Takahashi, Univ. of Toyama (Japan)
Fusakazu Matsushima, Univ. of Toyama (Japan)
Yoshiki Moriwaki, Univ. of Toyama (Japan)


Published in SPIE Proceedings Vol. 10347:
Optical Trapping and Optical Micromanipulation XIV
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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