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Surface Plasmon Excitation in Three-dimensional, Ordered, Gold Nanocrystal Arrays Using a Prism Coupler

Published online by Cambridge University Press:  01 February 2011

Kai Yang ,
Hongyou Fan ,
Michael J. O'Brien ,
Kevin J. Malloy ,
Gabriel P. Lopez ,
Jeffrey C. Brinker ,
Mansor Sheik-Bahae  and
Thomas W. Sigmon
Kai Yang
Affiliation:
kyang@chtm.unm.edu, University of New Mexico, Center for High Technology Materials, 1313 Goddard SE, Albuquerque, NM, 87106, United States, (505) 272-7805, (505) 272-7806
Hongyou Fan
Affiliation:
hyfan@unm.edu, Sandia National Laboratories, Advanced Materials Laboratory, United States
Michael J. O'Brien
Affiliation:
mobrien@chtm.unm.edu, University of New Mexico, Center for High Technology Materials, United States
Kevin J. Malloy
Affiliation:
malloy@chtm.unm.edu, University of New Mexico, Center for High Technology Materials, United States
Gabriel P. Lopez
Affiliation:
gplopez@unm.edu, University of New Mexico, Department of Chemical & Nuclear Engineering, United States
Jeffrey C. Brinker
Affiliation:
cjbrink@sandia.gov, Sandia National Laboratories, Advanced Materials Laboratory, United States
Mansor Sheik-Bahae
Affiliation:
msb@unm.edu, University of New Mexico, Department of Physics and Astronomy, United States
Thomas W. Sigmon
Affiliation:
sigmon@chtm.unm.edu, University of New Mexico, Center for High Technology Materials, United States
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Abstract

We report plasmon excitation in 3-dimensional, ordered, gold nanocrystal(NC) arrays using a prism coupler. The gold NCs are arranged in the silica host matrix in a face-centered cubic lattice with the mono-dispersion gold core size of ∼3 nm. We observed the collective optical behavior of the gold NC array and found a blue shift in the plasmon absorption peak with increasing gold volume fraction (Au loading). Plasmon resonance bands centered at 536, 530 and 520 nm are measured for gold NC arrays with gold loading factors of 0.25, 0.5 and 1.0, respectively. The corresponding angular spectra of the gold NC arrays show resonance angles at 60.3, 63.3 and 66.4 degree.

Keywords

nanostructureAuoptical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 900: Symposium O – Nanoparticles and Nanostructures in Sensors and Catalysis , 2005 , 0900-O06-06
Copyright
Copyright © Materials Research Society 2006

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References

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