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The Kramers-Kronig analysis of transmission spectra (KKTRANS)
V. Ossenkopf,
MPG AG ``Dust in Star-Forming Regions'' Jena
The Kramers-Kronig analysis of transmission spectra
(KKTRANS) is an application of the more general Kramers-Kronig
analysis routines of KKTOOL for the derivation of optical constants
from transmission spectra of samples with inclusions of separated
small spherical particles. The sample must be optically thin and
the embedding matrix material is characterized by a
constant real refractive index.
A convenient extrapolation of the transmission spectrum
outside of the measured range has to be done by the user. Several
standard functions for the extrapolations are available and the
continuation can be visually controlled. The obtained optical
constants may be stored in various forms.