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2011 | 119 | 2 | 140-142
Article title

Infrared Reflectance Kramers-Kronig Analysis by Anchor-Window Technique

Content
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Languages of publication
EN
Abstracts
EN
An algorithm for the Kramers-Kronig analysis of the reflectivity spectra, based on an anchor-window technique is presented. The high-frequency asymptote, required for the Kramers-Kronig analysis, is determined by minimizing differences between the Kramers-Kronig-deduced optical constants of a system under investigation and known optical constants measured in a small anchor-window. The algorithm is illustrated by applying it for a reconstruction of the optical conductivity σ(ω) of the fci-ZnMgRE quasicrystals in the spectral range of 0.01-6.5 eV from the experimental IR Fourier-transform reflectivity data and the experimental spectral ellipsometry VIS-UV data. The reliability of the suggested Kramers-Kronig analysis technique is confirmed by independent infrared spectral ellipsometry σ(ω) measurements for fci-ZnMgRE.
Keywords
EN
Contributors
author
  • Center for Physical Sciences and Technology, Semiconductor Physics Institute, A. Goštauto 11, 01108 Vilnius, Lithuania
author
  • Center for Physical Sciences and Technology, Semiconductor Physics Institute, A. Goštauto 11, 01108 Vilnius, Lithuania
author
  • Center for Physical Sciences and Technology, Semiconductor Physics Institute, A. Goštauto 11, 01108 Vilnius, Lithuania
author
  • Department of Physics, Chemistry and Biology, Linköping University, 58183 Linköping, Sweden
References
  • 1. A. Langsdorf, W. Assmus, J. Cryst. Growth 192, 152 (1998)
  • 2. K.-E. Peiponen, J.J. Saarinen, Rep. Prog. Phys. 72, 1 (2009)
  • 3. R.K. Ahrenkiel, J. Opt. Soc. Am. 61, 1651 (1971)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv119n214kz
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