Abstract

The transmittance of an absorbing medium with plane-parallel surfaces is calculated for two cases: (1) radiation generated isotropically inside the medium, and (2) incident diffuse radiation. The calculations are made for two values of index of refraction of the medium relative to its surroundings, n=1.0 and 1.5. In each case, an equivalent absorption coefficient is defined empirically such that the correct transmittance is obtained from the simpler expressions for incident parallel radiation.

© 1963 Optical Society of America

Some Observations on the Use of Elliptically Polarized Light to Study Metal Surfaces*

Frederick P. Mertens, Paul Theroux, and Robert C. Plumb
J. Opt. Soc. Am. 53(7) 788-796 (1963)

Study of the Total Absorptance near 4.5 μ by Two Samples of N₂O as Their Total Pressures and N₂O Concentrations Were Independently Varied*

Larry L. Abels and John H. Shaw
J. Opt. Soc. Am. 53(7) 856-859 (1963)

Electric Fields Produced by the Propagation of Plane Coherent Electromagnetic Radiation in a Stratified Medium

Wilford N. Hansen
J. Opt. Soc. Am. 58(3) 380-390 (1968)

Resolving Power in the Near Infrared of the Fabry–Perot Interferometer with Gold and with Silver Coatings

D. A. Jackson and K. Narahari Rao
J. Opt. Soc. Am. 53(5) 558-567 (1963)

Measurement of Absolute Radiation Intensities in the Vacuum-Ultraviolet Region

Einar Hinnov and Fritz W. Hofmann
J. Opt. Soc. Am. 53(11) 1259-1265 (1963)