English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/59080
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Transmittance and optical constants of Ho films in the 3-1340 eV spectral range

AuthorsFernández Perea, Mónica; Larruquert, Juan Ignacio ; Aznárez, José Antonio ; Méndez, José Antonio ; Poletto, L.; Frassetto, F.; Malvezzi, A.M.; Bajoni, D.; Giglia, A.; Mahne, N.; Nannarone, S.
Issue Date2011
PublisherAmerican Institute of Physics
CitationJournal of Applied Physics 109: 083525 (2011)
AbstractThe optical constants n and k of holmium (Ho) films were obtained in the 3-1340-eV range from transmittance measurements performed at room temperature. Thin films of Ho with various thicknesses were deposited by evaporation in ultra high vacuum conditions and their transmittance was measured in situ. Ho films were deposited onto thin C-film substrates supported on high transmittance grids. Transmittance measurements were used to obtain the extinction coefficient k of Ho films. The refractive index n of Ho was calculated with Kramers-Krönig analysis; in order to do this, k data were extrapolated both on the high and on the low energy parts of the spectrum by using experimental and calculated k values available in the literature. Ho, similar to other lanthanides, has a low-absorption band below the O2,3 edge onset; the lowest absorption was measured at ∼22 eV. Therefore, Ho is a promising material for filters and multilayer coatings in the energy range below the O2,3 edge in which most materials have a large absorption. Good consistency of the data resulted from the application of f and inertial sum rules. © 2011 American Institute of Physics.
URIhttp://hdl.handle.net/10261/59080
DOI10.1063/1.3556451
Identifiersdoi: 10.1063/1.3556451
issn: 0021-8979
Appears in Collections:(CFMAC-IO) Artículos
Files in This Item:
File Description SizeFormat 
Fernández.pdf2,13 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.