Naslov
Noble Metal Island Films for Optical Coatings - Tailoring their Optical Properties and Characterization by Spectroscopic Ellipsometry

Autori
Lončarić, Martin ; Zorc, Hrvoje

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Final Program Abstracts for the 2013 SVC Technical Conference / Scott, Walton - Albuquerque (NM) : Society of Vacuum Coaters, 2013, 24-24

Skup
56th Annual SVC Technical Conference

Mjesto i datum
Providence (RI), Sjedinjene Američke Države, 22.04.2013. - 25.04.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
plasmonic materials; metal island films; optical coatings; spectroscopic ellipsometry

Sažetak
Metal island fi lms of noble metals (silver, copper and gold) show unique optical properties due to the localized surface plasmon resonance of free electrons in metal nanoparticles. Strong plasmonic absorption at specifi c wavelengths, which depends on the particle size, shape, spatial distribution and dielectric environment, may be widely tailored varying production parameters. This makes these fi lms attractive for design of optical coatings beside usual dielectric layers. Noble metal island fi lms were produced using e-beam evaporation, embedded between diff erent combinations of TiO2 and/or SiO2 layers, on BK7 glass substrates. The tailoring of optical properties of the samples was done by changing mass thickness of deposited material and using diff erent dielectric layers above and below the metal island fi lm. The optical properties of noble metal island fi lms embedded between dielectric layers have been explored using effi cient procedure developed for optical characterization using spectroscopic ellipsometry. This procedure is based on modeling the dispersion of eff ective optical constants using a multiple oscillator approach. Thus obtained optical constants are prerequisite for implementation of noble metal island fi lms in the design of multilayer optical coatings for diff erent applications.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA