Abstract

Using the nomenclature and symbols recommended by the Committee on Nomenclature in Applied Spectroscopy, absorptivity is defined by the equation (1) a = A/bc where A is the absorbance (optical density) for monochromatic radiation, b is the thickness, and c the concentration. Molar absorptivity is arbitrarily defined for thickness measured in centimeters and concentration in moles/liter. Since A is a pure number, molar absorptivity has the units liters/mole cm. There is at present no single name for this combination of units.

Measurement of molar triplet extinction coefficients of organic molecules by means of cw laser excitation

T. G. Pavlopoulos
J. Opt. Soc. Am. 63(2) 180-184 (1973)

Measurement of Extinction Coefficients of Triplet Absorption and Quantum Yields of Triplet Formation*

William R. Dawson
J. Opt. Soc. Am. 58(2) 222-227 (1968)

Extinction and absorption coefficients and scattering phase functions of human tissues in vitro

Renato Marchesini, A. Bertoni, S. Andreola, E. Melloni, and A. E. Sichirollo
Appl. Opt. 28(12) 2318-2324 (1989)

In situ measurement of the ratio of aerosol absorption to extinction coefficient

Charles W. Bruce, Young Paul Yee, and S. G. Jennings
Appl. Opt. 19(12) 1893-1894 (1980)

Contributions of particle absorption to mass extinction coefficients (0.55–14 μm) of soil-derived atmospheric dusts: erratum

Hugh R. CarIon
Appl. Opt. 19(7) 1165-1172 (1980)