Gosse, Stephen Fredrick (M.Sc. 1994)
Imaginary part of the refractive index of ice, ammonium sulfate, and
sulfuric acid in the 1.4 to 7.8 micron range
Supervisors:
Labrie, D. and
Chylek, P.
Abstract:
New accurate values of the imaginary part of the refractive index, k,
are presented for polycrystalline ice at T=-22C, ammonium sulfate
solutions at T=24C, and sulfuric acid solutions at T=+/-24C. The data
were obtained from transmission measurements in the 1.4 to 7.8 micron
range, using sample thicknesses which varied from 1 micron to 309
micron.
The k spectrum for ice in the 1.43 to 2.89 micron region was found to
be in excellent agreement with the most recent study, and the data in
the 3.35 to 7.81 micron range eliminate the large existing uncertainty
in the 3.5 to 4.3 micron region. The first reported data on the k
spectrum for ammonium sulfate solutions in the 1.4 to 2.6 micron at
T=24C are presented. The k spectrum for sulfuric acid solutions in
the 1.4 to 2.6 micron range at T=24C is systematically higher than the
values reported in another study at T=27C; the first reported data on
the k spectrum for sulfuric acid solutions at T=-24C are also
presented.
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