29 May 2013 Surface optical properties for copper based on surface Kramers-Kroning analysis
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Abstract
Differential surface excitation probability for medium energy electrons traveling in Cu is extracted from reflection electron energy loss spectra using various theoretical models and the Werner’s elimination-retrieved algorithm. While the reflection electron energy loss spectra of Cu thin film were measured by the hemispherical analyzer, the bulk spectra of Cu were recorded by a cylindrical mirror analyzer. Surface Kramers-Kronig dispersion relationship is employed to analyze the surface energy loss function and to derive the complex dielectric constant. We found that the obtained surface optical data approximate reasonably well the optical properties of surface layer.
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T. Tang, T. Tang, Z. M. Zhang, Z. M. Zhang, K. Tőkési, K. Tőkési, K. Goto, K. Goto, Z. J. Ding, Z. J. Ding, } "Surface optical properties for copper based on surface Kramers-Kroning analysis", Proc. SPIE 8729, Scanning Microscopies 2013: Advanced Microscopy Technologies for Defense, Homeland Security, Forensic, Life, Environmental, and Industrial Sciences, 87290I (29 May 2013); doi: 10.1117/12.2016266; https://doi.org/10.1117/12.2016266
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