EKHI
The open database of optical and radiative data
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Publications: 167 Total entries: 1251
Verification of the anomalous-skin-effect theory for silver in the infrared
H. E. Bennett, J. M. Bennett, E. J. Ashley, R. J. Motyka
The measured infrared reflectance of silver films prepared by rapid evaporation in ultrahigh vacuum was found to be in excellent agreement (0.1%) with values predicted by the anomalous skin effect theory in the wavelength region from 4-24 μ (values of …
1 entries
Normal-incidence reflectance of aluminum films in the wavelength region 800-2000 Å
R. C. Vehse, E. T. Arakawa, J. L. Stanford
No abstract provided
4 entries
Note on the Reflecting Power of Tantalum, Tungsten, and Molybdenum
W. W. Coblentz
The positive and negative thermionic emission and the rate of evaporation of neutral atoms have been studied for well outgassed tungsten. To fix a reliable temperature scale the spectral emissivity for &lambda and =0.669 &mu and has been determined for …
1 entries
Optical Constants of Silicon in the Extreme Ultraviolet Region
T. Sasaki, K. Ishiguro
The optical constants n and k of a single crystal of silicon were determined by measurements of the reflectance at two angles of incidence in the region 10 to 19.2 eV. Energies of plasma oscillation derived from the optical data …
2 entries
Optical Constants of Germanium in the Region 1 to 10 ev
H. R. Philipp, E. A. Taft
The reflectance, |r(λ)|2, of single-crystal germanium was measured in the range 0.6 to 11.3 ev. The phase, θ(λ), was computed from these data using the Kramers-Kronig relation between the real and imaginary parts of the complex function lnr=ln|r|+iθ. The optical …
3 entries
Optical Properties of Ag and Cu
H. Ehrenreich, H. R. Philipp
Experimental data for the optical constants of Ag and Cu extending to 25 eV are discussed in terms of three fundamental physical processes: (1) free-electron effects, (2) interband transitions, and (3) collective oscillations. Dispersion theory is used to obtain an …
2 entries
COPPER: Normal spectral reflectance
Determination of the emissivity, for total radiation, of small diameter platinum-10% rhodium wires in the temperature range 600-1450°C
D. Bradley, A. G. Entwistle
The method of measurement of the emissivities is described. Two different lengths of wire, of the same diameter, were electrically heated in vacuo. By this procedure the end cooling correction could be eliminated experimentally. From the readings of wire resistance …
1 entries
Spectral Reflectance of CoAl and NiAl Alloys with CsCl Structure
Takashi Sambongi, Ryuhei Hagiwara, Tokio Yamadaya
Reflectance of CoAl and NiAl alloys with CsCl structure was measured in the spectral region between 7000 and 3000 Å. Structures in the reflectance curves are discussed in terms of interband transitions. Rigid-band approximation seems to be able to explain …
6 entries
[COBALT + ALUMINUM] ALLOYS: Normal spectral reflectance
Avoiding errors from stray radiation in measuring the spectral emittance of diffusely reflecting specimens
H. E. Clark
No abstract provided
3 entries
Optical absorption of copper and silver at 4.2°K
Manfred A. Biondi
Measurements of the optical absorption of copper and silver are made over the wavelength range 0.3-3.3μ at a temperature of 4.2°K where the classical mean free path of the conduction electrons is much greater than the depth of penetration of …
2 entries
COPPER: Angular spectral absorptance