A necessary and sufficient condition is derived for certain ad hoc expressions that are frequently used in the literature to represent correctly the degree of polarization of a light beam.
© 2007 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: November 29, 2006
Revised Manuscript: January 29, 2007
Manuscript Accepted: January 29, 2007
Published: April 3, 2007
Asma Al-Qasimi, Olga Korotkova, Daniel James, and Emil Wolf, "Definitions of the degree of polarization of a light beam," Opt. Lett. 32, 1015-1016 (2007)