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Proceedings Paper

High-speed observation of ZnO microspherical crystals produced by laser ablation (Conference Presentation)
Author(s): Daisuke Nakamura; Ryohei Tasaki; Yuki Fujiwara; Fumiaki Nagasaki; Mitsuhiro Higashihata; Hiroshi Ikenoue; Tatsuo Okada
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Paper Abstract

ZnO nano/microstructures have attracted much attention as building blocks for optoelectronic devices because of their high crystalline quality and unique structures. We have succeeded in synthesizing ZnO microspherical crystals by a simple atmospheric laser ablation method, and demonstrated ultraviolet whispering-gallery-mode lasing from the spheres. In the microsphere synthesis process, molten droplets formed into spherical shapes by surface tension, and crystalized during ejection from the ablation spot. In this study, we observed the generation of ZnO microspheres by high-speed camera. Now we are trying to control and manipulate the microspheres using a vortex beam.

Paper Details

Date Published: 21 April 2017
PDF: 1 pages
Proc. SPIE 10091, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII, 100910E (21 April 2017); doi: 10.1117/12.2253468
Show Author Affiliations
Daisuke Nakamura, Kyushu Univ. (Japan)
Ryohei Tasaki, Kyushu Univ. (Japan)
Yuki Fujiwara, Kyushu Univ. (Japan)
Fumiaki Nagasaki, Kyushu Univ. (Japan)
Mitsuhiro Higashihata, Kyushu Univ. (Japan)
Hiroshi Ikenoue, Kyushu Univ. (Japan)
Tatsuo Okada, Kyushu Univ. (Japan)

Published in SPIE Proceedings Vol. 10091:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII
Beat Neuenschwander; Costas P. Grigoropoulos; Tetsuya Makimura; Gediminas Račiukaitis, Editor(s)

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