EKHI
The open database of optical and radiative data
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Publications: 169 Total entries: 1362
The Infra-Red Absorption and Reflection Spectra of KHF2 and of KDF2 [2]
J. A.a. Ketelaar
No abstract provided
25 entries
HYDROXIDE MINERALS: Normal spectral transmittance
SILICATE MINERALS: Normal spectral transmittance
CALCIUM SULFATE: Normal spectral transmittance
SULFATE MINERALS: Normal spectral transmittance
CARBONATE MINERALS: Normal spectral transmittance
Infrared Spectral Emittance Measurements of Optical Materials
D. L. Stierwalt
Optical properties of solids are usually determined by measurements of either the transmittance or the reflectance. Each of these methods has advantages and disadvantages, depending upon the spectral region and the nature of the material being studied. A third method, …
9 entries
ZINC SELENIDE ZnSe: Normal spectral emittance
Fundamental absorption edge in cadmium sulfide
David Dutton
The absorption and reflection spectra of CdS have been determined in the temperature range 90°-340°K by photoelectric measurements on single crystals, using polarized light. The temperature and frequency dependence of the absorption coefficient in the edge, over a substantial range …
3 entries
Some optical properties of CdSe single crystals
S. P. Keller, G. D. Pettit
Optical transmission and reflection measurements were made on a single crystal of CdSe (crystal class C₆ᵥ) with light polarized parallel and perpendicular to the 𝘤 axis. The absorption coefficients, μ⊥ and μII, were determined and are presented as functions of …
4 entries
Optical Properties of Single-Crystal Magnesium Oxide
M. W. Williams, E. T. Arakawa
The reflectance of single crystals of MgO was measured at a 15° angle of incidence for photon energies between 4 and 29 eV and the optical constants obtained by a Kramers-Kronig analysis of the reflectance data. In the energy range …
4 entries
Lattice Infrared Spectra of Boron Nitride and Boron Monophosphide
P. J. Gielisse, S. S. Mitra, J. N. Plendl, R. D. Griffis, L. C. Mansur, R. Marshall, E. A. Pascoe
The fabrication of highly dense, highly polished compacts consolidated from monocrystalline cubic boron nitride at very high pressures and temperatures has enabled us to record the infrared reflection spectrum of cubic boron nitride from 80 to 550°K. For annealed compacts, …
6 entries
MISCELLANEOUS PHOSPHIDES: Normal spectral reflectance
Lattice Vibration Spectra of Aluminum Nitride
A. T. Collins, E. C. Lightowlers, P. J. Dean
The reflectivity and transmission spectra of aluminum nitride have been measured using unpolarized radiation in the wavelength region 2 to 30 μ. The dielectric parameters and the zone-center (k≃0) opticalmode energies [transverse (TO) and longitudinal (LO)] have been calculated from …
8 entries
Ultra-violet optical properties of potassium fluoride
D. M. Roessler, H. J. Lempka
The reflection spectrum at normal incidence of monocrystalline potassium fluoride has been measured in the range 6-24 eV in the far ultra-violet. The data were analysed by means of a Kramers-Kronig transform to generate the dielectric parameters n2 - k2 …
1 entries
Infrared Transmission Spectrum and Lattice Vibration Analysis of Some Perovskite Fluorides
Ichiro Nakagawa, Atsushi Tsuchida, Takehiko Shimanouchi
Infrared absorption spectra of the perovskite fluorides KMF3 (M:Ni, Mg, and Zn) and NaNiF3 have been measured in the region 700 to 50 cm-1 at room temperature and liquid-nitrogen temperature. Three absorption bands for KMF3 were observed and these have …
9 entries
POTASSIUM MAGNESIUM TRIFLUORIDE KMgF₃: Normal spectral transmittance
POTASSIUM NICKEL TRIFLUORIDE KNiF₃: Normal spectral transmittance
MISCELLANEOUS CUBIC PEROVSKITE FLUORIDES: Normal spectral transmittance
A Polarizer for the Vacuum Ultraviolet
D. L. Steinrnetz, W. G. Phillips, M. Wirick, F. F. Forbes
The construction and optical properties of a MgF2 double Rochon prism are described. The prism is useful as a polarizer or analyzer in the vacuum uv wavelengths longer than 1300 Å. Measurements of MgF2 transmission and of polarizer angular beam …
4 entries