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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 1 — Jan. 4, 2012

Surface-enhanced fluorescence from silver fractallike nanostructures decorated with silver nanoparticles

Jun Dong, Hairong Zheng, Xuqiang Li, Xiaoqing Yan, Yu sun, and Zhenglong Zhang  »View Author Affiliations


Applied Optics, Vol. 50, Issue 31, pp. G123-G126 (2011)
http://dx.doi.org/10.1364/AO.50.00G123


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Abstract

Fluorescence emission of fluorophore molecules in the close vicinity of a nanostructured metal surface can be enhanced through a local electromagnetic field with the help of surface plasmon resonance. The fluorescence enhancement effect is very sensitive to the topography and dielectric property of the metal substrate. In the current work, metal substrates with complex structures, which are made of silver fractallike structures and nanoparticles (NPs), are prepared through electrochemical reduction followed by physical deposition. The surface-enhanced fluorescence of Rhodamine 6G monolayer molecules deposited on the prepared complex substrates are investigated with the laser spectroscopic technique. The experimental results show that the fractallike structure decorated with silver NPs presents stronger fluorescence enhancement, compared with silver NPs or pure silver fractallike structures.

© 2011 Optical Society of America

OCIS Codes
(300.2530) Spectroscopy : Fluorescence, laser-induced
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

History
Original Manuscript: July 5, 2011
Manuscript Accepted: September 30, 2011
Published: October 25, 2011

Virtual Issues
Vol. 7, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Jun Dong, Hairong Zheng, Xuqiang Li, Xiaoqing Yan, Yu sun, and Zhenglong Zhang, "Surface-enhanced fluorescence from silver fractallike nanostructures decorated with silver nanoparticles," Appl. Opt. 50, G123-G126 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-50-31-G123

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