[1] COLLINS S.A lens-system diffractionintegral written in terms of matrix optics[J].J Opt Soc Am,1970,60(9):1168-1177.

[3] LAX M,LOUISELL W H,MCKNIGHT W B.From Maxwell to paraxial wave optics[J].Phys RevA,1975,11(4):1365-1370.

[4] AGRAWAL G P,PATTANATAK D N.Gaussian beam propagation beyond the paraxialapproximation[J].J Opt Soc Am A,1979,68(4):575-578.

[5] CHEN C G,KONKOLA P T,FERRERA J,et al.Analyses of vector Gaussian beam propagation andthe validity of paraxial and spherical approximations[J].J Opt Soc AmA,2002,19(2):404-412.

[6] W UNSCHE A.Transition from the paraxial approximation to exact solutions of the waveequation and application to Gaussian beams[J].J Opt Soc Am A,1992,9(5):765-774.

[7] DUAN Kai-liang,LU Bai-da.Vectorial nonparaxial propagati on equation ofellipticalGaussian beams in the presence of a rectangular aperture[J].J Opt Soc AmA,2004,21(9):1613-1620.

[8] LU Bai -da,DUAN Kai -liang.Nonparaxial propagation of vectorial Gaussian beamsdiffracted at a circular aperture[J].Opt Lett,2003,28(24):2440-2442.

[9] SESHADRI S,VIRTUAL R.Source for a Hermite-Gauss beam[J].Opt Lett,2003,28(8):595-597.

[10] NEMOTO S.Nonparaxial Gaussian beams[J].Appl Opt,1990,29(13):1940-1946.