Spectrophotometric studies of ultra low loss optical glasses. I. Single beam method.

@article{Kao1968SpectrophotometricSO,
  title={Spectrophotometric studies of ultra low loss optical glasses. I. Single beam method.},
  author={Kwan Chi Kao and Terence Davies},
  journal={Journal of scientific instruments},
  year={1968},
  volume={1 11},
  pages={
          1063-72
        }
}
  • K. Kao, T. Davies
  • Published 1968
  • Physics, Medicine, Chemistry
  • Journal of scientific instruments
A double beam spectrophotometer is described, suitable for the measurements of very low attenuation coefficients in glass in the wavelength range 500-1000 nm. The instrument is shown to have a balance stability of ±1 × 10−5. The systematic errors involved in the use of the long samples required for these measurements are studied. The instrument is shown to be satisfactory in making measurements of attenuation coefficients of 00001 cm−1 with an accuracy to ±0000 01 cm−1 when sample pairs of 20… Expand
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References

SHOWING 1-4 OF 4 REFERENCES
Spectrophotometric studies of ultra low loss optical glasses lll: ellipsometric determination of surface reflectances
The method of measurement of low loss glasses by the comparison of the transmission through two samples of different length requires that the difference in reflection losses between samples be known.Expand
The accurate measurement of the spectral transmission of optical glass
The difficulties associated with measuring accurately the spectral transmission of optical glass are discussed. A simple method is described which enables absorption coefficients of the order ofExpand
Fatigue and Saturation in Photomultipliers
The characteristics of some EMI photomultipliers when operated continuously with large cathode and collector currents are described. It is shown that cathode currents up to about 10 μA/cm2 areExpand
Simple method of pressurizing small systems with pure helium
The device described enables vapour-pressure thermometers or similar equipment to be pressurized with pure helium with little expenditure of liquid helium and without the need for mechanical pumpingExpand