Abstract
An apparatus was designed and assembled to measure scattered light in the range of where enhanced backscattering, the cause of a glory, occurs. The apparatus was calibrated and tested using Fraunhofer circular aperture diffraction, angle of incidence correction, and a diffuse reflector. Theory indicates that backscattering is strongly dependent on particle size, refractive index, and shape. Experimental measurements from polystyrene latex spheres of two sizes and water droplets showed good agreement with Mie theory, but also indicated the extreme sensitivity of the backscattering to particle parameters. The results presented should have use in the fields of particle scattering, particle metrology, and LIDAR.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Vincenzo Grasso, Fortunato Neri, and Enrico Fucile
Appl. Opt. 36(12) 2452-2458 (1997)
Osvaldo Ulloa, Shubha Sathyendranath, and Trevor Platt
Appl. Opt. 33(30) 7070-7077 (1994)
Sara González Ruiz, Maria Rosaria Vetrano, and Jeroen van Beeck
Appl. Opt. 53(21) 4722-4728 (2014)