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Optical properties of gold island films: a spectroscopic ellipsometry study

Lončarić, Martin; Sancho-Parramon, Jordi; Zorc, Hrvoje (2011) Optical properties of gold island films: a spectroscopic ellipsometry study. Thin Solid Films, 519 (4). pp. 2946-2950. ISSN 0040-6090

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Abstract

Metal island films of noble metals are obtained by deposition on glass substrates during the first stage of evaporation process when supported metal nanoparticles are formed. These films show unique optical properties, owing to the localized surface plasmon resonance of free electrons in metal nanoparticles. In the present work we study the optical properties of gold metal island films deposited on glass substrates with different mass thicknesses at different substrate temperatures. The optical characterization is performed by spectroscopic ellipsometry at different angles of incidence and transmittance measurements at normal incidence in the same point of the sample. Fitting of the ellipsometric data allows determining the effective optical constants and thickness of the island film. A multiple oscillator approach was used to successfully represent the dispersion of the effective optical constants of the films.

Item Type: Article
Uncontrolled Keywords: spectroscopic ellipsometry; metal islands; surface plasmon; optical properties
Subjects: NATURAL SCIENCES > Physics
NATURAL SCIENCES > Physics > Condensed Matter Physics
Divisions: Division of Laser and Atomic Research and Development
Projects:
Project titleProject leaderProject codeProject type
Optička svojstva nanostrukturnih slojeva[119546] Hrvoje Zorc098-0000000-3191MZOS
Depositing User: Hrvoje Zorc
Date Deposited: 07 May 2015 09:12
Last Modified: 07 May 2015 09:12
URI: http://fulir.irb.hr/id/eprint/1767
DOI: 10.1016/j.tsf.2010.12.068

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