[1] P. A. Belanger. Beam propagation and the ABCD ray matrices. Opt. Lett. , 1991, 16(4): 196～198

[2] A. E. Siegman. Defining the effective radius of curvature for a nonideal optical beam. IEEE J. Quantum Electron. , 1991, 27(5): 1146～1148

[3] G. P. Agrawal, D. N. Pattanayak. Gaussian beam propagation beyond the paraxial approximation. J. Opt. Soc. Am. , 1979, 69(4): 575～578

[4] C. Palma, V. Bagini. Propagation of super-Gaussian beams. Opt. Comm. , 1994, 111(1,2): 6～10

[6] Melvin Lax, W. H. Louisell, W. B. McKnight. From Maxwell to paraxial wave optics. Phys. Rev. A, 1975, 11(4): 1365～1370

[7] L. W. Davis. Theory of electromagnetic beams. Phys. Rev. A, 1979, 19(3): 1177～1179

[8] Marc Counture, P.-A. Belanger. From Gaussian beam to complex-source-point spherical wave. Phys. Rev. A, 1981, 24(1): 355～359

[9] G. P. Agrawal, M. Lax. Free-space wave propagation beyond the paraxial approximation. Phys. Rev. A, 1983, 27(3): 1693～1695

[10] Shojiro Nemoto. Nonparaxial Gaussian beams. Appl. Opt. , 1990, 29(13): 1940～1946

[11] Takashi Takenaka, Mitsuhiro Yokota, Otozo Fukumitsu. Propagation of light beams beyond the paraxial approximation. J. Opt. Soc. Am. A, 1985, 2(6): 826～829

[13] A. E. Siegman. New development in laser resonators. SPIE, 1990, 1224: 2～14

[14] A. Parent, M. Morin, P. Lavigne. Propagation of super-Gaussian field distribution. Opt. Quantum Electron. , 1992, 24(9): S1071～S1079