Abstract
The physical-realizability issues of scalar focus wave modes that are solutions of the homogeneous wave equation with the boundary data exp(−r2w0−2) given on a characteristic are addressed. The Gaussian beams are solutions of the paraxial equation with the same boundary data in a fixed plane. A comparison of these two situations suggests that the focus wave modes can be approximated by giving the exponential exp(−r2w0−2) on some moving plane. This suggestion is implemented.
© 1992 Optical Society of America
Full Article | PDF ArticleMore Like This
A. Wünsche
J. Opt. Soc. Am. A 6(11) 1661-1668 (1989)
Pierre Hillion
J. Opt. Soc. Am. A 16(1) 205-207 (1999)
A. Ya. Polishchuk, S. Gutman, M. Lax, and R. R. Alfano
J. Opt. Soc. Am. A 14(1) 230-234 (1997)