We introduce a generalized angular spectrum representation for quantized light beams. By using our formalism, we are able to derive simple expressions for the electromagnetic vector potential operator in the case of (a) time-independent paraxial fields, (b) time-dependent paraxial fields, and (c) nonparaxial fields. For the first case the well-known paraxial results are fully recovered.
© 2006 Optical Society of America
Original Manuscript: October 10, 2005
Manuscript Accepted: October 30, 2005
A. Aiello, J. Visser, G. Nienhuis, and J. P. Woerdman, "Angular spectrum of quantized light beams," Opt. Lett. 31, 525-527 (2006)