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Optical properties of Al, Fe, Ti, Ta, W, and Mo at submillimeter wavelengths

Ordal, Mark A., Bell, Robert J., Alexander, Ralph W., Newquist, Lawrence A., Querry, Marvin R.·1988·Applied Optics

Abstract

Measurements of the optical constants of metals at submillimeter wavelengths are sparse. We have used a nonresonant cavity to measure, at room temperature, the angle averaged absorptance spectra P(omega) 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(omega) = r(omega) + ix(omega), was determined from P(omega). Measurements were also made on iron from 400 to 4000 cm(-1) using standard reflectance techniques. The r(omega) spectrum was combined with previous measurements by others at higher frequencies and Kramers-Kronig analyses of the resultant combined r(omega) spectra provided epsilon(omega) = epsilon(1)(omega) + iepsilon(2)(omega) and N(omega) = n(omega) + ik(omega).

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Metadata

Authors
Ordal, M. A., Bell, R. J., Alexander, R. W., Newquist, L. A., & Querry, M. R.
Venue
Applied Optics
Published
1988-03-15
Volume
27
Issue
6
Pages
1203
ISSN
  • 0003-6935 (ISSN-L)
  • 1539-4522
OpenAlex
W2050901374
Cited by
444
References
4
FWCI
1.45
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Optical properties of Al, Fe, Ti, Ta, W, and Mo at submillimeter wavelengths. https://app.cochat.ai/papers/10.1364/ao.27.001203
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Ordal, M. A., Bell, R. J., Alexander, R. W., Newquist, L. A., & Querry, M. R. (1988). Optical properties of Al, Fe, Ti, Ta, W, and Mo at submillimeter wavelengths. Applied Optics. https://doi.org/10.1364/ao.27.001203

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