Papers

Opto-electronics

, Volume 2, Issue 1, pp 36-42

A photometer to measure light scattering in optical glass

  • P. J. R. LaybournAffiliated withDepartment of Electronics, University of Southampton
  • , J. P. DakinAffiliated withDepartment of Electronics, University of Southampton
  • , W. A. GamblingAffiliated withDepartment of Electronics, University of Southampton

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Abstract

A photometer is described for the measurement of light-scattering in high-quality, optical bulk glass. The photometer operates continuously over the wavelength range 0.5 to 1μm and can measure scattering coefficients down to a level of 5×10−7 cm−1. A photon counting technique is used for light measurement and calibration is by reflection of the incident beam from an ideal diffusing screen. Measurements with high-purity benzene are in good agreement with computed and previous experimental values. Results of scattering from two samples of optical glass are given.