Progress in Optics 
Subtitle: Volume XXXIX (Progress in Optics)
Publisher: Elsevier Science & Technology
Published: June 1, 1999
Language: eng
Format: Hardcover
Number of pages: 522
ISBN-13: 9780444501042
Subjects: Applied optics; Optics (light); Optics; Science; Medical / Nursing; Science/Mathematics; General
First sentence: Complex rays are solutions of the ray equations of traditional geometrical optics, but correspond to extremals in the six-dimensional complex space (x' ,x" ,y' ,y" ,z' ,z"), where x' = Re{x}, x" = Im{x}, etc.