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.
© 2003 Optical Society of America
Baida Lü and Kailiang Duan, "Nonparaxial propagation of vectorial Gaussian beams diffracted at a circular aperture," Opt. Lett. 28, 2440-2442 (2003)