EKHI
The open database of optical and radiative data
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Publications: 169 Total entries: 1362
Electronic spectrum of crystalline lithium fluoride
D. M. Roessler, W. C. Walker
The reflection spectrum of freshly cleaved lithium fluoride has been measured from the near ultraviolet to 28 eV. The real (ε1) and imaginary (ε2) parts of the dielectric response function have been computed via the Kramers-Kronig relations. The Γ exciton …
3 entries
SODIUM FLUORIDE NaF: Normal spectral reflectance
Formation and Bleaching of X-ray induced F-centers in CaF2
J. Arends
Results are presented on the formation and optical bleaching of X-ray induced F-centers in CaF2 at liquid nitrogen temperature. The data indicate that the F-center vacancies are created by the irradiation. After optical bleaching the vacancies can easily be refilled …
3 entries
Optical properties of insulators in the extreme ultraviolet.
G. Stéphan, J. C. Lemonnier, S. Robin
A reflectometer adaptable to the exit slit of a grazing-incidence monochromator is developed to investigate the optical properties of crystals or evaporated layers before exposure to air in the region 100–1000 Å (124–12.4 eV). The optical constants are determined by …
8 entries
LITHIUM FLUORIDE LiF: Angular spectral reflectance
PYREX: Angular spectral reflectance
Spectral Emissivity of Calcium Fluoride
Kumao Hisano, Yasunori Okamoto, ON Matumura
No abstract provided
4 entries
Electrical and Optical Properties of Rare Earth Doped Cadmium Fluoride Single Crystals
Paul F. Weller
Single crystals of CdF2 have been doped with all rare earth elements and with Y, Sc, and U. Firing these crystals in a Cd atmosphere or under vacuum at 500° produced samples having electronic, n-type conductivity for all the dopants …
4 entries
Infrared reflectance spectrum and optical constants of sodium chlorate
G. Andermann, David A. Dows
Accurate measurements of the reflectance of the (100 face) of NaClO3 single crystals have been made in the infrared region of 400-1400 cm-1, which includes all the fundamental vibrations of the ClO3- ion. Optical indices for this region have been …
1 entries
Solid-State Reaction between Iodine and Mercurous Halides
R. P. Rastogi, B. L. Dubey
The stoichiometry and kinetics of reactions, between (i) iodine and mercurous chloride, (ii) iodine and mercurous bromide, and (iii) iodine and mercurous iodide have been studied. HgClI is formedin reaction i and dissociates after some time into mercuric chloride and …
5 entries
MISCELLANEOUS CHLORIDES: Normal spectral reflectance
MISCELLANEOUS IODIDES: Normal spectral reflectance
The Urbach Tails and Reflection Spectra of NaCl Single Crystals
Takeo Miyata, Tetsuhiko Tomiki
In the tail part region of the first exciton band, the absorption constant (10-1 to 102 cm-1) was measured on zone-refined and Harshaw NaCl single crystals from 10°K to 573°K. Fundamental absorption tails of pure NaCl single crystals are represented …
6 entries
On the Question of a Phase Change in Zirconium Monocarbide
Leonard N. Grossman
No abstract provided
14 entries
Impurity-Sensitive Infrared Absorption in n-type α-SiC
Atsuo Imai
Optical measurements were made on several crystals of n-type α-SiC in the ranges 1 to 5μ(Range I) and 15 to 30μ (Range II) at 300°K and at 500°K. The absorption coefficient a is nearly proportional to the square of wavelength, …
3 entries