A relationship is established between two correlation coefficients (complex degrees of coherence) frequently used in the theory of partially coherent optical fields. One of them characterizes correlation in the space – time domain, the other in the space – frequency domain. Some relations obtained previously by ad hoc methods are shown to readily follow from our general formula.
© 1995 Optical Society of America
Original Manuscript: November 10, 1994
Published: March 15, 1995
Ari T. Friberg and Emil Wolf, "Relationships between the complex degrees of coherence in the space–time and in the space–frequency domains," Opt. Lett. 20, 623-625 (1995)