LIGHT ABSORPTION COEFFICIENT CALCULATION DEVICE, CONCENTRATION DETERMINATION DEVICE, LIGHT ABSORPTION COEFFICIENT CALCULATION METHOD, CONCENTRATION DETERMINATION METHOD, PROGRAM FOR CALCULATING LIGHT ABSORPTION COEFFICIENT, AND PROGRAM FOR CALCULATING CONCENTRATION

摘要

PROBLEM TO BE SOLVED: To provide a light absorption coefficient calculation device for reducing an effect of noise generated by a layer other than a target layer, a concentration determination device, a light absorption coefficient calculation method, a concentration determination method, a program for calculating a light absorption coefficient, and a program for calculating a concentration.SOLUTION: The light absorption coefficient calculation device includes: irradiation means 102; light receiving means 103; optical intensity acquisition means 104; and light absorption coefficient calculation means 106 for obtaining a calibration curve created based optical intensity at a predetermined time of a time resolution waveform of short-time pulse light in a plurality of observation target models, optical intensity at non-absorption time at the predetermined time of the time resolution waveform of the short-time pulse light in the plurality of observation target models, and a model value of the light absorption coefficient of each of a plurality of layers of light scattering media set in each of the plurality of observation target models, and collating the optical intensity obtained by the optical intensity acquisition means 104 with the calibration curve to calculate a light absorption coefficient on an arbitrary layer.