In a recent paper by Di Girolamo <i>et al</i>. [J. Geophys. Res. D <b>103,</b> 8795 (1998)] a heuristic argument was used to derive a reciprocity principle applicable to reflected solar radiation measurements. Here a formal derivation of this reciprocity principle is presented. It is also demonstrated that a purely spatial reciprocal relationship exists between one-dimensional radiative transfer theory and the three-dimensional searchlight problem for horizontally homogeneous media.
© 1999 Optical Society of America
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.5820) Scattering : Scattering measurements
Larry Di Girolamo, "Reciprocity Principle Applicable to Reflected Radiance Measurements and the Searchlight Problem," Appl. Opt. 38, 3196-3198 (1999)