Abstract

During the summer of 1986 some preliminary experiments were performed to measure the reflectivity of hard targets used to calibrate a coherent Doppler lidar. The experiments were performed in an integrating sphere with the sample uniformly and normally irradiated. In this way both bihemispherical and directional-hemispherical reflectance were measured. The irradiated targets in the case of bihemispherical reflectance were the standard diffuse gold sample, flowers of sulfur, glass bead blasted aluminum, and 120 grade aluminum oxide sandpaper. In the case of normal directional-hemispherical measurements the samples were the diffuse gold standard, glass bead blasted aluminum, and the 120 grade sandpaper. In the bihemispherical measurements the integrating sphere wall was irradiated so the sample could be uniformly irradiated.

© 1987 Optical Society of America