Lü Baida, Duan Kailiang
Institute of Laser Physics & Chemistry, Sichuan University, Chengdu 610064, China.
Opt Lett. 2003 Dec 15;28(24):2440-2. doi: 10.1364/ol.28.002440.
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.
基于矢量瑞利衍射积分，研究了矢量高斯光束在圆形孔径处衍射后的非傍轴传播。远场和傍轴情况被视为我们一般结果的特殊情况。结果表明，对于有孔径的情况，f参数在确定矢量衍射高斯光束的非傍轴性方面仍然起着重要作用，但f参数和截断都影响光束的演化行为。
