EKHI
The open database of optical and radiative data
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Publications: 167 Total entries: 1251
Electronic spectra of crystalline NaCl and KCl
D. M. Roessler, W. C. Walker
The real (ε1) and imaginary (ε2) parts of the dielectric response function, together with the energy-loss function Im (1ε^), of freshly cleaved single crystals of NaCl and KCl were obtained in the region 5-28 eV by Kramers-Kronig analysis of near-normal-incidence …
3 entries
Infrared dielectric constant and ultraviolet optical properties of solids with diamond, zinc blende, wurtzite, and rocksalt structure
Manuel Cardona
The room‐temperature optical constants of InP, CdTe, and ZnTe are calculated for photon energies up to 20 eV by the Kramers‐Kronig analysis of the normal‐incidence reflection spectra. Data at 77°K are also presented for ZnTe and CdTe. At these temperatures, …
1 entries
Erratum: Optical dispersion of lead sulfide in the infrared (Physical Review (1966) 147, 2 (670))
J. R. Dixon, H. R. Riedl
No abstract provided
4 entries
Infrared absorption of magnesium stannide
Herbert G. Lipson, Alfred Kahan
Infrared transmission and reflection measurements have been made on n- and p-type semiconducting Mg2Sn single crystals of different impurity concentrations between 2 and 30 μ, at temperatures ranging from 15 to 296°K. At incident energies less than 0.22 eV, strong …
2 entries
Angle-of-incidence dependence of calcium fluoride reflectivity
Alfred Kahan, Donald E. Mccarthy
Room-temperature reflectivity measurements of CaF2 in the fundamental-lattice-vibration region were obtained between frequencies 200 to 650 cm-1 and angles of incidence ranging from near normal to 78°. Based on the method of classical oscillator analysis, the near-normal reflectivity is fitted …
6 entries
Infrared reflectance from mat surfaces
Robert K. Vincent, Graham R. Hunt
A general theory is presented which segregates the rays composing the total reflectance from a mat surface according to their dependence on the intrinsic absorption coefficient. It is tested against experimental data obtained from samples of two materials (calcite and …
5 entries
Absolute Reflective Spectra of Ceramic Barium Titanate
Amiya K. Goswami
No abstract provided
6 entries
Infrared Spectral Emittance and Optical Properties of Yttrium Vanadate
H. E. Rast, H. H. Caspers, S. A. Miller
The infrared spectral emittance E of single scrystals of YVO4 has been examined near 4.2 and 77°K in the wavelength range 4-125 μm. Of the expected seven active transverse optical modes at k∼0, six have been observed and assigned to …
9 entries
Infrared spectral emittance of InAs
D. L. Stierwalt, R. F. Potter
The infrared absorption spectra for a p-type InAs sample were determined by measuring the spectral emittance at 77, 203, and 373°K. The spectra contained features which are identified with optical edge transitions, free-carrier absorption, intervalence-band transitions, multiphonon absorption and the …
5 entries
Thermal and optical energy gaps in PbTe
R. N. Tauber, A. A. Machonis, I. B. Cadoff
The optical absorption edge (indirect energy gap) for PbTe was determined in the temperature range of 80°-520°K. It was found that dEg/dT had a value of 4.1×10
4 entries