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Optical constants of Ho films

Ho film optical constants were obtained in situ in the 3–1340 eV range from transmittance measurements performed at room temperature. Holmium films were deposited onto 5nm thick carbon films supported on a Ni grid. The refractive index n was obtained with KK analysis over an extended spectral range. Experimental data show that Ho is a promising candidate for transmittance filters and reflective multilayers in the EUV range. 

J. I. Larruquert et al., J. Appl. Phys. 109, 8 (2011).

 

The optical constants n and k of holmium (Ho) films were obtained in situ in the Visible-soft x-rays spectral range. Holmium films were deposited onto 5nm thick carbon films supported on a Ni grid. The extinction coefficient was obtained from transmittance measurements performed at room temperature; the refractive index n was obtained with KK analysis over an extended spectral range. Experimental data show that Ho is a promising candidate for transmittance filters and reflective multilayers in the EUV range. Good consistency of data resulted from the application of f and inertial sum rules. 

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Transmittance and optical constants of Ho films in the 3-1340 eV spectral range, 
Monica Fernandez Perea, Juan Ignacio Larruquert, Josè Antonio Aznarez, Josè Antonio Mendez, Luca Poletto, Fabio Frassetto, Andrea Marco Malvezzi, Daniele Bajoni, Angelo Giglia, Nicola Mahne, Stefano Nannarone,
  J. Appl. Phys. 109, 8 (2011)
 

 

Last Updated on Tuesday, 18 December 2012 09:41