METHOD FOR SEPARATE DETERMINATION OF PROBABILITIES OF ABSORPTION AND DISPERSION OF PHOTONS PER UNIT OF WAY IN SOLID OPTIC MATERIALS Russian patent published in 2014 - IPC G01N21/59 G01N21/47 

FIELD: measurement equipment.

SUBSTANCE: measurements of a light transmission factor are performed for two specimens with different thickness, which are made from one and the same test material. Measured values of transmission coefficients, data on thicknesses and diameters of specimens, a value of a refraction index and an experimentally determined dispersion index (relationship between dispersion intensity and dispersion angle) is used for calculation of probabilities of absorption and dispersion of photons per unit of the way by means of mathematical modelling. At modelling, for both specimens there determined are relationships between probabilities of dispersion of photons and absorption probabilities, which give experimentally measured transmission coefficients. Since both specimens with different thicknesses along the beam are made from one and the same material, both model relationships shall cross at a point, at which both probabilities are not equal to zero, and values of probabilities at this point shall be true probabilities of absorption and dispersion of photons per unit of the way in the test material, which are the same for both specimens.

EFFECT: invention allows determining probabilities of absorption and dispersion of photons with maximum possible accuracy, which allows accurate classification and certification of batches of materials, as well as selection of the material with required absorption and dispersion properties to increase reproducibility of characteristics of the corresponding optic, optoelectronic and laser devices.

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