Vectorial Hermite--Laguerre--Gaussian beams beyond the paraxial approximation
Wang Bei-Zhan(王备战)a), Zhao Zhi-Guo(赵志国)a)b)†, Lü Bai-Da(吕百达)b), and Duan Kai-Liang(段开椋)b)
a Department of Physics, Luoyang Normal College, Luoyang 471022, China; b Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China
Abstract Starting from the vectorial Rayleigh--Sommerfeld integrals, the free-space propagation expressions for vectorial Hermite--Laguerre--Gaussian (HLG) beams beyond the paraxial approximation are derived. The far-field expressions and the scalar paraxial results are given as special cases of our general expressions. The intensity distributions of vectorial nonparaxial HLG beams are studied and illustrated with numerical examples.
Received: 18 January 2006
Revised: 05 June 2006
Accepted manuscript online:
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