RefractiveIndex.INFO Refractive index database




Optical constants of W (Tungsten)
Ordal et al. 1988: n,k 0.667-200 µm

Wavelength: µm
 (0.667 – 200)  

Other optical constants

n   k   logX   logY   eV


"We have used a nonresonant cavity to measure, at room temperature, the angle averaged absorptance spectra P(ω) of aluminum, molybdenum, tantalum, titanium, tungsten, and iron in the 30-300-cm-1 wavenumber region. The real part of the normalized surface impedance spectrum, z(ω) = r(ω) + ix(ω), was determined from P(ω). Measurements were also made on iron from 400 to 4000 cm-1 using standard reflectance techniques. The r(ω) spectrum was combined with previous measurements by others at higher frequencies and Kramers-Kronig analyses of the resultant combined r(ω) spectra provided ε(ω) = ε1(ω) + 2(ω) and N(ω) = n(o) + ik(ω)."


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M. A. Ordal et al. Optical properties of Al, Fe, Ti, Ta, W, and Mo at submillimeter wavelengths, Appl. Opt. 27, 1203-1209 (1988)

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Tungsten, W

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