title: Nonparaxial propagation of vectorial Gaussian beams diffracted at a circular aperture.
abstract: Based on the vectorial Rayleigh diffraction integral, the nonparaxial propagation of vectorial Gaussian beams diffracted at a circular aperture is studied. The far-field and paraxial cases are treated as special cases of our general result. It is shown that for the apertured case the f parameter still plays an important role in determining the nonparaxiality of vectorial diffracted Gaussian beams, but both the f parameter and truncation affect the beam evolution behavior.
authors.affiliation: Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China. badalu@scu.edu.cn
authors.forename: Baida
authors.initials: B
authors.lastname: Lü
authors.forename: Kailiang
authors.initials: K
authors.lastname: Duan