The Shift of the Peak of a Localized Plasmon Resonance in Granulated Gold Films on the Surface of a-C:H


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Abstract

Spectra of optical density of granulated 2-nm-thick gold films deposited on the surface of thin films of amorphous hydrogenated carbon (a-C:H) on quartz substrates are investigated. A shift of the peak corresponding to the localized surface plasmon resonance toward the shorter wavelengths by 32 nm upon an increase in the optical bandgap of the a-C:H films from 0.8 to 2.4 eV is demonstrated. Simultaneously, an increase in intensity and narrowing of the plasmon-resonance band in spectra of gold nanostructures is observed. This fact indicates that formation of the granulated gold films on the surface of a-C:H films depends on the specific structural properties of the latter.

About the authors

E. A. Konshina

ITMO University

Author for correspondence.
Email: eakonshina@mail.ru
Russian Federation, St. Petersburg, 197101

D. P. Scherbinin

ITMO University

Email: eakonshina@mail.ru
Russian Federation, St. Petersburg, 197101

M. M. Abboud

ITMO University

Email: eakonshina@mail.ru
Russian Federation, St. Petersburg, 197101

I. A. Gladskikh

ITMO University

Email: eakonshina@mail.ru
Russian Federation, St. Petersburg, 197101

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