Determination of optical constants of scandium films in the 20-1000 eV range

The transmittance of thin films of Sc deposited by evaporation in ultrahigh vacuum conditions has been investigated in the 20-1000 eV spectral range. Transmittance measurements were performed in situ on Sc layers that were deposited over grids coated with a C support film. Transmittance measurements...

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Veröffentlicht in:Journal of the Optical Society of America. A, Optics, image science, and vision Optics, image science, and vision, 2006-11, Vol.23 (11), p.2880-2887
Hauptverfasser: FERNANDEZ-PEREA, Monica, LARRUQUERT, Juan I, AZNAREZ, José A, MENDEZ, José A, POLETTO, Luca, MALVEZZI, A. Marco, GIGLIA, Angelo, NANNARONE, Stefano
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container_end_page 2887
container_issue 11
container_start_page 2880
container_title Journal of the Optical Society of America. A, Optics, image science, and vision
container_volume 23
creator FERNANDEZ-PEREA, Monica
LARRUQUERT, Juan I
AZNAREZ, José A
MENDEZ, José A
POLETTO, Luca
MALVEZZI, A. Marco
GIGLIA, Angelo
NANNARONE, Stefano
description The transmittance of thin films of Sc deposited by evaporation in ultrahigh vacuum conditions has been investigated in the 20-1000 eV spectral range. Transmittance measurements were performed in situ on Sc layers that were deposited over grids coated with a C support film. Transmittance measurements were used to obtain the extinction coefficient of Sc films at each individual photon energy investigated. These data, along with the data available in the literature for the rest of the spectrum, were used to obtain the refractive index of Sc by means of the Kramers-Krönig analysis. Sum-rule tests indicated an acceptable consistency of the data.
doi_str_mv 10.1364/JOSAA.23.002880
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Physics
title Determination of optical constants of scandium films in the 20-1000 eV range
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