Thin film emission of KBr, RbCl, RbBr and NaCl in the far infra-red
J. E. Mooij, W. B. Van DE Bunt, J. E. Schrijvers
The emission coefficient E of thin films (2-9μ) of KBr, RbCl, RbBr and NaCl has been measured between 50 and 250 cm^{-1}. An expression for E is given. Values of ω_{0} and \Gamma for the TO oscillator between 350°K and 800°K have been derived from the spectra. © 1969.
Materials
Curve 1
Temperature, K: 620
Wavelength Range, µm: 63.8-143.
Geometry θ': ~0°
Composition (weight percent), Specifications, and Remarks: KBr (7.46 µm thick); platinum substrate.
Curve 2
Temperature, K: 620
Wavelength Range, µm: 67.9-123.
Geometry θ': ~0°
Composition (weight percent), Specifications, and Remarks: Similar to above specimen and conditions except 4.76 µm thick.
Curve 3
Temperature, K: 620
Wavelength Range, µm: 66.6-117.
Geometry θ': ~0°
Composition (weight percent), Specifications, and Remarks: Similar to curve 1 specimen and conditions except 2.86 µm thick.