Resolving Optical Constants from Reflectance of Liquids in the UV-Visible Range

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Abstract:

Reflection spectra of liquids were measured in the UV-visible spectral range with the use of a recently developed reflectometer. The complex refractive index of two solutions, lignin and red food color, both diluted in water, were investigated. For the first time a maximum entropy model was applied in recovering complex reflectivities from non-normal incidence reflectance spectra of liquids. The optical constants in the UV-visible range were then resolved by Fresnel's equations.

Keywords: COMPLEX REFRACTIVE INDEX OF LIQUIDS MAXIMUM ENTROPY MODEL REFLECTOMETER

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702991945272

Publication date: January 1, 1999

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