厄米-高斯光束通过多个硬边光阑复杂光学系统变换的计算模拟

Numerical simulation of the transformation of Hermite-Gaussian beams through a complicated optical system with multiple hard-edged apertures

用Wen的方法研究了厄米 高斯光束通过含有多个硬边光阑复杂光学系统的传输,推导出了具有快速计算优点的传输公式,使计算时间大为减少。高斯光束传输可作为理论模型的特例得出。数值计算例表明使用该解析公式所得结果和直接对Collins公式作数值积分的结果符合较好。对所用方法和所得结果的进一步推广作了讨论。

The transformation of Hermite-Gaussian beams through a complicated optical system with multiple hard-edged apertures was studied by Wen's method. A closed-form propagation expression is derived which provides the main advantage of the fast algorithm, so that the computational time is greatly reduced. The propagation of Gaussian beams through such a type of optical system can be regarded as a special case in the theoretical model. Numerical examples of H-G beams propagating through multiple aperture-lens optical systems by using the proposes formula were given, which show a good consistent with that by straightforward integral of the Collins formula.