Soft X-ray refractive index by reconciling total electron yield with specular reflection: experimental determination of the optical constants of graphite

Jansing, C.; Wahab, H.; Timmers, H.; Gaupp, A.; Mertins, H.-C.

doi:10.1107/S1600577518010408

Journal of Synchrotron Radiation Journal of
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Figure 5
The reflectance R_p for HOPG measured with p-geometry and simulations. The experimental data (open circles) are best produced by a simulation that is based on optical constants that have been determined using an energy-dependent ∊ and equation (7d)

(red curve). Other simulations are shown for comparison and discussed in the text. The inset compares the data and simulations in more detail at the π-resonance peak. (The values for ∊ are given in eV and the respective functional dependence of μ on η is indicated.)

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 25| Part 5| September 2018| Pages 1433-1443

https://doi.org/10.1107/S1600577518010408

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