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Journal of Nanophotonics

Resonant properties of coupled silver hemispheroids
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Paper Abstract

We present a study of resonant optical properties of paired silver hemispheroids grown on a glass substrate using out-diffusion technique combined with thermal poling of the glass. Atomic force microscopy was used to characterize the morphology of the grown nanostructures. Dark-field spectroscopy and numerical simulation were applied to study the optical properties of the coupled nanoparticles (NPs) depending on the interparticle gap and size difference of the hemispheroids in a pair. Raman spectroscopy testing of the coupled hemispherical NPs showed that they can provide signal enhancement factor exceeding one of a single hemispherical NP.

Paper Details

Date Published: 27 January 2017
PDF: 9 pages
J. Nanophoton. 11(3) 032503 doi: 10.1117/1.JNP.11.032503
Published in: Journal of Nanophotonics Volume 11, Issue 3
Show Author Affiliations
Ekaterina S. Babich, Saint-Petersburg State Polytechnical Univ. (Russia)
Sergey A. Scherbak, Saint-Petersburg State Polytechnical Univ. (Russia)
St. Petersburg Academic Univ. (Russia)
Alexey V. Redkov, Saint-Petersburg State Polytechnical Univ. (Russia)
St. Petersburg Academic Univ. (Russian Federation)
Institute of Problems of Mechanical Engineering, RAS (Russian Federation)
Alexander N. Kamenskii, Saint-Petersburg State Polytechnical Univ. (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)
Igor V. Reduto, Saint-Petersburg State Polytechnical Univ. (Russia)
St. Petersburg Academic Univ. (Russia)
Univ. of Eastern Finland (Finland)
Andrey A. Lipovskii, Saint-Petersburg State Polytechnical Univ. (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)


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