RIAO/OPTILAS 2004 : 5th Iberoamerican meeting on Optics and 8th Latin American meeting on optics, lasers, and their applications : 3-8 October, 2004, Porlamar, Isla de Margarita, Venezuela Arístides Marcano O., José Luis Paz, editors ; organized by Venezuelan Optical Committee ; sponsored by Instituto Venezuelano de Investigaciones Cientificas ... [et al.] ; cosponsored by IUPAP--the Internationhal Union for Pure and Applied Physics ... [et al.]