The optical constants of liquid tin at 261 ^∘{}C have been deduced from ellipsometric measurements for photon energies between 0.62 and 3.7 eV. Liquid tin behaves like a nearly-free-electron metal over the measured range. The Drude parameters were derived from the real part of the dielectric constant, giving τ=4.90×10^-16 sec for the relaxation time and m*m=0.98 for the ratio of the effective mass to free-electron mass. Comparison is made with previous results for liquid tin and also with data for solid tin.
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Pétrakian et al. (1980) studied this question.
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