Optical Properties of Au, Ni, and Pb at Submillimeter Wavelengths
Measurements of the Optical Properties, and Thus the Optical Constants, of Metals at Submillimeter Wavelengths Are Almost Nonexistent. We Used a Nonresonant Cavity to Measure at Ambient Temperature the Angle Averaged Absorptance Spectra P(Ω) of Gold, Nickel, and Lead in the 30-300-Cm'1 Wave-Number Region. the Real Part of the Normalized Surface Impedance Spectrum Z(Ω) = R(Ω) + Ix(Ω) Was Determined from P(W). the R(Ω) Spectrum Was Combined with Previous Measurements by Others at Higher Frequencies, and Kramers- Kronig Analyses of the Resultant R(W) Spectra Provided E(X) =,(Ω) + I(Ω) and N(Ω) = N(Ω) + Ik(Ω) for Gold and Nickel in the 35-15, 000-Cm-1 Region and for Lead in the 15-15, 000-Cm-1 Region. We Also Derived an Exact Analytical Expression for P(Ω) of a Metal. © 1987, Optical Society of America.
M. A. Ordal et al., "Optical Properties of Au, Ni, and Pb at Submillimeter Wavelengths," Applied Optics, vol. 26, no. 4, pp. 745 - 752, Optica, Feb 1987.
The definitive version is available at https://doi.org/10.1364/AO.26.000744
International Standard Serial Number (ISSN)
Article - Journal
© 2023 Optica, All rights reserved.
15 Feb 1987