通过把环形光阑函数展开为复高斯函数的方法,推导出贝塞尔光束通过有环形光阑限制的近轴ABCD光学系统的传输近似解析公式。通过数值计算,对贝塞尔光束通过环形光阑的传输特性进行了详细的研究,给出了光阑内、外半径等参数对光强分布的影响规律。
The propagation approximation analytic expressions of Bessel beams through a hard-edged annular apertured ABCD optical system have been studied by using the method of compound Gaussian function. Analysis for the propagation properties of Bessel beams through an annular aperture from the numerical calculations and the effect of the output beam caused by different inner and outer radius of the annular aperture has been given.