We develop a general model of a laser remote-sensing system for search and rescue using targets marked with fluorescent dye. The dye fluoresces at a longer peak wavelength than the incident radiation, enabling a dye-covered target to be distinguished from the unshifted ground echo by the search system. The principal result is a simple expression derived for the average laser power required to search at a particular rate given a required ground energy density. A similar expression is applicable to imaging lidar systems. The example system shown indicates that active probing for lost planes may be practical.
[Optical Society of America ]
Christopher T. Field and Pamela S. Millar, "Laser Remote-Sensing System Analysis for Search and Rescue," Appl. Opt. 38, 2586-2593 (1999)