[1] 吕百达.激光光学[M].成都:四川大学出版社,1992.53.
[2] NEMOTO S.Nonparaxial Gaussian beams[J].Appl Opt,1990,29:1940~1946.
[3] AGRAWAL G P,PATTANAYAK D N.Gaussian beam propagation beyond the paraxial approximation[J].J O S A,1979,69:575~578.
[4] DUAN K L,LÜ B D.Nonparaxial analysis of far-field properfies of Gaussian beams diffracted by an aperture[J].Opt Expr,2003(11):1474~1479.
[5] BORN M,WOLF E.Principles of optics[M].7th ed,Cambridge:Cambridge University Press, 1999.478.