abstract:In spectroscopy, the absorbance (also called optical densityLaser Guidebook, by Jeff Hecht, p79) of a material is a logarithmic ratio of the radiation falling upon a material, to the radiation transmitted through a material.Mehta, A.
N
a measure of the light-absorbing ability of an object, expressed as the logarithm to base 10 of the reciprocal of the internal transmittance 吸光率
[physics]
→see
transmittance