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Infrared Reflectance Kramers--Kronig Analysis by Anchor-Window Technique
Institute for Semiconductor Physics, Vilnius, Lithuania .
Institute for Semiconductor Physics, Vilnius, Lithuania .
Institute for Semiconductor Physics, Vilnius, Lithuania .
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, The Institute of Technology.ORCID iD: 0000-0001-9229-2028
2011 (English)In: ACTA PHYSICA POLONICA A, ISSN 0587-4246, Vol. 119, no 2, 140-142 p.Article in journal (Refereed) Published
Abstract [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 sigma(omega) 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 sigma(omega) measurements for fci-ZnMgRE.

Place, publisher, year, edition, pages
Polish Academy of Sciences Warsaw , 2011. Vol. 119, no 2, 140-142 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-66154ISI: 000287288500015OAI: oai:DiVA.org:liu-66154DiVA: diva2:401893
Available from: 2011-03-04 Created: 2011-03-04 Last updated: 2013-10-14Bibliographically approved

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