Tunable optical coupling in regular arrays of gold and silver nanoparticles

David A. Smith; Anatoliy O. Pinchuk

doi:10.1117/12.930751

9 October 2012 Tunable optical coupling in regular arrays of gold and silver nanoparticles

David A. Smith, Anatoliy O. Pinchuk

Proceedings Volume 8457, Plasmonics: Metallic Nanostructures and Their Optical Properties X; 84572J (2012) https://doi.org/10.1117/12.930751
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

We report far-field optical extinction spectra of linear chains of gold and silver nanocylinders with interparticle separations close to the particles' surface plasmon resonance (SPR) wavelength. The spectra reveal a typical pattern of dipole-like and quadrupole SPR peaks and additional non-SPR peaks. We rationalize the extra peaks by constructive interference of the scattered and incident electromagnetic fields.

Citation Download Citation

David A. Smith and Anatoliy O. Pinchuk "Tunable optical coupling in regular arrays of gold and silver nanoparticles", Proc. SPIE 8457, Plasmonics: Metallic Nanostructures and Their Optical Properties X, 84572J (9 October 2012); https://doi.org/10.1117/12.930751

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