It shown how cosine-Gauss and Bessel–Gauss beams can be generated using the complex source point theory. Paraxial beams are treated first. An analytic expression is derived for the nonparaxial cosine-Gaussian beam, based on the complex source point approach, and numerical results are presented to illustrate its behavior. A way to generate nonparaxial Bessel–Gauss beams is also indicated.
© 2013 Optical Society of America
Original Manuscript: November 28, 2012
Manuscript Accepted: January 8, 2013
Published: February 13, 2013
Colin J. R. Sheppard, "Complex source point theory of paraxial and nonparaxial cosine-Gauss and Bessel–Gauss beams," Opt. Lett. 38, 564-566 (2013)