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Modeling the scaling law of surface plasmon resonance in gold spherical nanoshells

[+] Author Affiliations
Jui-Teng Lin

National Taiwan University, Institute of Photonics and Optoelectronics, Taipei, 10617 Taiwan

J. Nanophoton. 4(1), 049507 (November 18, 2010). doi:10.1117/1.3525598
History: Received September 24, 2010; Revised October 18, 2010; Accepted November 15, 2010; November 18, 2010; Online November 18, 2010
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Abstract

Analytic formulas for spherical nanoshell (Au/silica) resonance wavelength and refractive index sensitivity were derived and compared with a numerical nonlinear theory. A universal scaling law was deduced in terms of a normalized thickness defined by the ratio of the shell thickness and its core diameter. The calculated figure of merit shows a maximum at an optimal value of the resonance wavelength and normalized thickness. The nonlinear theory of nanoshells improves the accuracy of the linear theory in the short wavelength regime (500 to 650 nm).

© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Jui-Teng Lin
"Modeling the scaling law of surface plasmon resonance in gold spherical nanoshells", J. Nanophoton. 4(1), 049507 (November 18, 2010). ; http://dx.doi.org/10.1117/1.3525598


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