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Zhejiang University Details Findings in Plasmonics

May 27, 2014

By a News Reporter-Staff News Editor at Physics Week -- Researchers detail new data in Plasmonics. According to news reporting originating from Hangzhou, People's Republic of China, by VerticalNews correspondents, research stated, "We investigate the surface-enhanced Raman spectroscopy of Ag nanorings antenna in both experiment and simulation. Self-organized Ag nanorings antenna were formed on quartz glass wafers by a simple chemistry reaction without any template."

Our news editors obtained a quote from the research from Zhejiang University, "The three-dimensional finite-difference time-domain simulation calculations indicate that the electric field enhancement of Ag nanoring antenna is strongly dependent on the gap distance. A very strong surface plasmon coupling in the gap region of Ag nanoring antenna is observed, whose field intensity is enhanced four times compared to that for Ag nanodomes antenna with the same gap distance. Surface-enhanced Raman scattering (SERS) measurements have shown that the SERS intensity acquired from the Ag nanoring antenna is about 16 times stronger than that obtained from Ag nanodomes antenna."

According to the news editors, the research concluded: "These results pave the way to design plasmonic nanostructures for practical applications that require coupled metallic nanoparticles with enhanced electric fields."

For more information on this research see: Self-Organized Ag Nanorings Antenna Substrates for Surface-Enhanced Raman Spectroscopy. Plasmonics, 2014;9(2):375-379. Plasmonics can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer -; Plasmonics -

The news editors report that additional information may be obtained by contacting Z. Yi, Zhejiang University, Dept. of Opt Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, People's Republic of China. Additional authors for this research include X.B. Li, J.S. Luo, Y. Yi, X.B. Xu, P.H. Wu, X.D. Jiang, W.D. Wu, Y.G. Yi and Y.J. Tang.

Keywords for this news article include: Asia, Hangzhou, Plasmonics, People's Republic of China

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Source: Physics Week

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