Optical constants of crystalline and fused quartz in the far ultraviolet.
Near-normal incidence reflectance measurements of crystal and fused quartz are reported in the 1026-1640-A interval. The reflectance spectra are extended either with known data or with extrapolations to allow a Kramers-Kronig analysis. The calculated complex index of refraction is in good agreement with the results obtained by other methods. This agreement even extends to the ir.
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