Transmittance and optical constants of Er films in the 3.25-1580 eV spectral range (Articolo in rivista)

Type
Label
  • Transmittance and optical constants of Er films in the 3.25-1580 eV spectral range (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • S. García-Cortés, L.R. Marcos, J.I. Larruquert, J.A. Aznárez, J.A. Méndez, L. Poletto, F. Frassetto, A.M. Malvezzi, A. Giglia, N. Mahne, S. Nannarone (2011)
    Transmittance and optical constants of Er films in the 3.25-1580 eV spectral range
    in Applied optics (2004)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. García-Cortés, L.R. Marcos, J.I. Larruquert, J.A. Aznárez, J.A. Méndez, L. Poletto, F. Frassetto, A.M. Malvezzi, A. Giglia, N. Mahne, S. Nannarone (literal)
Pagina inizio
  • 2211 (literal)
Pagina fine
  • 2219 (literal)
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  • 50 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
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  • [ 1 ] CSIC, Grp Opt Laminas Delgadas, Inst Opt, Madrid 28006, Spain [ 2 ] CNR, Inst Photon & Nanotechnol, I-35131 Padua, Italy [ 3 ] Univ Pavia, Dipartimento Elettron, I-27100 Pavia, Italy [ 4 ] Consorzio Nazl Interuniv Sci Fis Mat, I-27100 Pavia, Italy [ 5 ] CNR, Lab Tecnol Avanzate & NanoSCi, Ist Off Mat, I-34149 Trieste, Italy [ 6 ] Univ Modena & Reggio Emilia, Dipartimento Ingn Mat & Ambiente, I-41100 Modena, Italy (literal)
Titolo
  • Transmittance and optical constants of Er films in the 3.25-1580 eV spectral range (literal)
Abstract
  • The optical constants of erbium (Er) films were obtained in the 3.25-1580 eV range from transmittance measurements performed at room temperature. Thin films of Er were deposited by evaporation in ultra high vacuum conditions and their transmittance was measured in situ. Substrates consisted of a thin C film supported on a grid. Transmittance measurements were used to obtain the extinction coefficient k of the Er films. The refractive index n of Er was calculated using the Kramers-Kronig analysis. k data were extrapolated both on the high-and low-energy parts of the spectrum by using experimental data and calculated k values available in the literature. Er, similar to other lanthanides, has a low-absorption band below the O-2,O-3 edge onset; the smallest absorption was measured at similar to 22.5 eV. Therefore, Er is a promising material for filters and multilayer coatings in the energy range below the O-2,O-3 edge, in which materials typically have an absorption stronger than at other energies. Good consistency of the data resulted from the application of f and inertial sum rules. (literal)
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