Effect of gold-coating on surface plasmon of silver nanostructure array

Zhu, Shaoli and Zhou, Wei (2011). Effect of gold-coating on surface plasmon of silver nanostructure array. In: Andrew Dzurak, Proceedings of ICONN 2010. 2010 International Conference On Nanoscience and Nanotechnology (ICONN), Sydney, NSW, Australia, (388-391). 22-26 February 2010. doi:10.1109/ICONN.2010.6045269

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Author Zhu, Shaoli
Zhou, Wei
Title of paper Effect of gold-coating on surface plasmon of silver nanostructure array
Conference name 2010 International Conference On Nanoscience and Nanotechnology (ICONN)
Conference location Sydney, NSW, Australia
Conference dates 22-26 February 2010
Proceedings title Proceedings of ICONN 2010
Place of Publication Piscataway, NJ, U.S.A.
Publisher Institute for Electrical and Electronic Engineers (IEEE)
Publication Year 2011
Sub-type Fully published paper
DOI 10.1109/ICONN.2010.6045269
ISBN 9781424452620
9781424452613
Editor Andrew Dzurak
Start page 388
End page 391
Total pages 4
Collection year 2012
Language eng
Abstract/Summary We report that gold-coating has a significant effect on the plasmon properties of both triangular and rhombic Au-Ag nanostructure arrays. Both finite-difference time-domain and discrete dipole approximation methods are used to calculate the optical properties of the nanostructure array. We changed the thickness of the gold-coating and the refractive index of the medium surrounding the nanostructure array and obtained the maximum refractive index sensitivity. The electric field distribution of the triangular nanostructure array is also explored by a FDTD method. The calculated results show that gold-coating has a significant effect on the plasmon properties of the triangular and rhombic Au-Ag nanostructure array and the rhombic nanostructure array has a higher refractive index sensitivity than the triangular nanostructure array.
Keyword Optical properties
Triangular Billiards
Rhombic
Finite-difference time-domain
Discrete dipole approximation
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

 
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Created: Fri, 11 Mar 2011, 10:05:14 EST by Dr Shaoli Zhu on behalf of Aust Institute for Bioengineering & Nanotechnology