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 HermiteGaussian beams through a complicated optical system with multiple hardedged apertures
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摘要: 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。Abstract: The transformation of HermiteGaussian (HG) beams through a complicated optical system with multiple hardedged apertures is studied using Wen's method. A closedform propagation expression is derived which provides the main advantage of the fast algorithm, so that the computational time is great reduced. The propagation of Gaussian beams through such a type of optical system can be regarded as a special case in our theoretical model. Numerical examples of HG beams propagating through multiple aperturelens optical systems by using our formula are given, which show a good consistent with those by straightforward integral of the Collins formula. Further extension of the method and results obtained in this paper is discussed.
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