NDLI: Effect of gold-coating on the plasmon properties of silver nanostructure arrays

Content Provider	IEEE Xplore Digital Library
Author	Shaoli Zhu Wei Zhou
Copyright Year	2010
Description	Author affiliation: Precision Engineering and Nanotechnology Center, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore (Shaoli Zhu; Wei Zhou)
Abstract	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.
Starting Page	388
Ending Page	391
File Size	1265832
Page Count	4
File Format	PDF
ISBN	9781424452613
DOI	10.1109/ICONN.2010.6045238
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-22
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silver Gold Sensitivity optical properties discrete dipole approximation rhombic Refractive index triangular Plasmons Nanobioscience finite-difference time-domain Finite difference methods
Content Type	Text
Resource Type	Article

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