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Proceedings Paper

Second harmonic generation from the top of an Au-coated tip via a tapered fiber coupled microsphere resonator
Author(s): Fang Ren; Kazutaka Kitajima; Hideaki Takashima; Hideki Fujiwara; Keiji Sasaki
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Paper Abstract

The efficient coupling of light from a tapered fiber coupled microsphere resonator to localized surface plasmon modes of Au-coated tip was demonstrated. To verify efficient localized surface plasmon excitation at the metal tip via a tapered fiber coupled microsphere resonator, we measured second harmonic generation from the top of Au-coated tip. From the results, in spite of a weak CW excitation, we succeeded in repeatedly observing SHG from the top of the Au-coated tip via a tapered fiber coupled microsphere resonator system, which could focus the light with the coupling efficiency of about 63.2 % into the nanoscale domain of the metal tip with the effective cross section of 358.2 nm2.

Paper Details

Date Published: 15 October 2012
PDF: 5 pages
Proc. SPIE 8463, Nanoengineering: Fabrication, Properties, Optics, and Devices IX, 846305 (15 October 2012); doi: 10.1117/12.929437
Show Author Affiliations
Fang Ren, Hokkaido Univ. (Japan)
Kazutaka Kitajima, Hokkaido Univ. (Japan)
Hideaki Takashima, Hokkaido Univ. (Japan)
Hideki Fujiwara, Hokkaido Univ. (Japan)
Keiji Sasaki, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 8463:
Nanoengineering: Fabrication, Properties, Optics, and Devices IX
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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