Article,

Optical properties of the metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd, Pt, Ag, Ti, and W in the infrared and far infrared

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Appl. Opt., 22 (7): 1099--1119 (Apr 1, 1983)
DOI: 10.1364/ao.22.001099

Abstract

Infrared optical constants collected from the literature are tabulated. The data for the noble metals and Al, Pb, and W can be reasonably fit using the Drude model. It is shown that -∊l(ω) = ∊2(ω) ≃ ω2p/(2ω2τ) at the damping frequency ω = ωτ. Also -∊l(ω τ) ≃ - (½) ∊l(0), where the plasma frequency is ωp.

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