Considerable confusion exists regarding the applicability limits of the Bouguer–Lambert–Beer law of optical transmission. We review the derivation of the law and discuss its application to the optical thickness of the light-scattering medium. We demonstrate the range of applicability by presenting a method for determining particle size by measuring optical transmission at two wavelengths.
© 1999 Optical Society of America
(120.7000) Instrumentation, measurement, and metrology : Transmission
(290.4020) Scattering : Mie theory
(290.4210) Scattering : Multiple scattering
(290.5850) Scattering : Scattering, particles
Nancy L. Swanson, Barton D. Billard, and Theresa L. Gennaro, "Limits of Optical Transmission Measurements with Application to Particle Sizing Techniques," Appl. Opt. 38, 5887-5893 (1999)