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Proceedings Paper

Fabrication of semiconductor microspheres with laser ablation in superfluid helium
Author(s): Yosuke Minowa; Yuya Oguni; Masaaki Ashida
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Paper Abstract

We fabricated semiconductor ZnO microspheres via the pulsed laser ablation in the superfluid helium. The scanning electron microscope observation revealed the high sphericity and smooth surface. We also observed whispering gallery mode resonances, the electromagnetic eigenmode resonances within the microspheres, in the cathodoluminescence spectrum, verifying the high symmetry of the fabricated microspheres. Further, we cross-sectioned the microspheres with using focused ion beam. The scanning electron microscope observation of the cross section uncovers the existence of small holes within the microspheres. The inner structure examination helps us to understand the microscopic mechanism of our fabrication method.

Paper Details

Date Published: 18 April 2017
PDF: 2 pages
Proc. SPIE 10252, Optical Manipulation Conference, 102520N (18 April 2017); doi: 10.1117/12.2274888
Show Author Affiliations
Yosuke Minowa, Osaka Univ. (Japan)
Yuya Oguni, Osaka Univ. (Japan)
Masaaki Ashida, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 10252:
Optical Manipulation Conference
Takashige Omatsu, Editor(s)

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