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Very large plasmon band shift in strongly coupled metal nanoparticle chain arrays.

Published online by Cambridge University Press:  01 February 2011

L. A. Sweatlock ,
J. J. Penninkhof ,
S. A. Maier ,
A. Polman  and
H. Atwater
L. A. Sweatlock
Affiliation:
Thomas J. Watson Laboratories of Applied Physics, Caltech Pasadena, CA 91125, USA
J. J. Penninkhof
Affiliation:
FOM Institute for Atomic and Molecular Physics (AMOLF), Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
S. A. Maier
Affiliation:
Thomas J. Watson Laboratories of Applied Physics, Caltech Pasadena, CA 91125, USA
A. Polman
Affiliation:
FOM Institute for Atomic and Molecular Physics (AMOLF), Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
H. Atwater
Affiliation:
Thomas J. Watson Laboratories of Applied Physics, Caltech Pasadena, CA 91125, USA
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Abstract

30 MeV silicon ion irradiation of silica glass containing 10 nm silver nanocrystals causes alignment of the nanocrystals in closely spaced linear arrays along the ion tracks. Optical transmission measurements show a 1.5 eV splitting of the surface plasmon resonant absorption bands for polarizations longitudinal and transversal to the arrays. The resulting material is a highly anisotropic glass that absorbs blue light of one polarization, and near-infrared light of the orthogonal polarization. Finite-difference time domain simulations are used to explore the effects of interparticle spacing and total array length on the absorption properties.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 797: Symposium W – Engineered Porosity for Microphotonics and Plasmonics , 2003 , W4.6
Copyright
Copyright © Materials Research Society 2004

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References

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