Transmittance and optical constants of Ca films in the 4-1000 eV spectral range (Articolo in rivista)

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  • Transmittance and optical constants of Ca films in the 4-1000 eV spectral range (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1364/AO.54.001910 (literal)
Alternative label
  • Luis Rodriguez-de Marcos and Juan I. Larruquert and Manuela Vidal-Dasilva and Jose A. Aznarez and Sergio Garcia-Cortes and Jose Mendez and Luca Poletto and Fabio Frassetto and A. Marco Malvezzi and Daniele Bajoni and Angelo Giglia and Nicola Mahne and Stefano Nannarone (2015)
    Transmittance and optical constants of Ca films in the 4-1000 eV spectral range
    in Applied optics (2004, Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Luis Rodriguez-de Marcos and Juan I. Larruquert and Manuela Vidal-Dasilva and Jose A. Aznarez and Sergio Garcia-Cortes and Jose Mendez and Luca Poletto and Fabio Frassetto and A. Marco Malvezzi and Daniele Bajoni and Angelo Giglia and Nicola Mahne and Stefano Nannarone (literal)
Pagina inizio
  • 1910 (literal)
Pagina fine
  • 1917 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://ao.osa.org/abstract.cfm?URI=ao-54-8-1910 (literal)
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  • 54 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
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  • 1GOLD--Instituto de Óptica--Consejo Superior de Investigaciones Científicas, Serrano 144, 28006 Madrid, Spain 2Institute of Photonics and Nanotechnologies-National Council for Research, Via Trasea 7, 35131 Padova, Italy 3Dipartimento di Elettronica, Università di Pavia and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Via Ferrata, 1, I27100 Pavia, Italy 4Istituto Officina dei Materiali--Consiglio Nazionale delle Ricerche Laboratorio Tecnologie Avanzate e NanoSCienza, Area Science Park Basovizza, S.S. 14 Km 163.5, 34149 Trieste, Italy (literal)
Titolo
  • Transmittance and optical constants of Ca films in the 4-1000 eV spectral range (literal)
Abstract
  • The low expected absorption of Ca in the extreme ultraviolet (EUV) makes it an attractive material for multilayers and filters because most materials in nature strongly absorb the EUV. Few optical constant data had been reported for Ca. In this research, Ca films of various thicknesses were deposited on grid-supported C films and their transmittance measured in situ from the visible to the soft x-rays. The measurement range contains M2,3 and L2,3 absorption edges. Transmittance measurements were used to obtain the Ca extinction coefficient k. A minimum k of 0.017 was obtained at 23 eV, which makes Ca a promising low-absorption material for EUV coatings. A second spectral range of interest for its low absorption is below the Ca L3 edge at 343 eV. Measured k data and extrapolations were used to calculate the refractive index n using Kramers Kronig relations. This is the first self-consistent data set on Ca covering a wide spectral range including the EUV. (literal)
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