Plasmonic Features in the Absorption Spectrum of a Monodisperse Ensemble of Gold Nanoislands on Sapphire


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Abstract

Plasmonic features in the absorption spectrum of a monodisperse ensemble of gold nanoislands on a sapphire substrate are considered. An explanation of the long-wavelength and UV bands in the absorption spectrum of the sample is proposed. The long-wavelength feature is interpreted as a consequence of surface plasmon polariton excitation under coherent scattering from a regular lattice of gold particles on sapphire, and the short-wavelength feature is considered to be a plasmon resonance, localized on individual gold nanoparticles.

About the authors

A. A. Konovko

Moscow State University

Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119991

B. V. Nabatov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”

Author for correspondence.
Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119333

A. E. Muslimov

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”

Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119333

E. A. Kekkonen

Moscow State University

Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119991

A. V. Andreev

Moscow State University

Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119991

V. M. Kanevsky

Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”

Email: bnabatov@crys.ras.ru
Russian Federation, Moscow, 119333

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