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21 April 2017 High-speed observation of ZnO microspherical crystals produced by laser ablation (Conference Presentation)
Daisuke Nakamura, Ryohei Tasaki, Yuki Fujiwara, Fumiaki Nagasaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada
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Proceedings Volume 10091, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII; 100910E (2017) https://doi.org/10.1117/12.2253468
Event: SPIE LASE, 2017, San Francisco, California, United States
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.
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Daisuke Nakamura, Ryohei Tasaki, Yuki Fujiwara, Fumiaki Nagasaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, and Tatsuo Okada "High-speed observation of ZnO microspherical crystals produced by laser ablation (Conference Presentation)", Proc. SPIE 10091, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXII, 100910E (21 April 2017); https://doi.org/10.1117/12.2253468
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KEYWORDS
Crystals
Zinc oxide
Laser ablation
Laser crystals
High speed cameras
Optical spheres
Optoelectronic devices
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