Application of the fast Hankel transformation to the beam propagation
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摘要: 在对各种快速汉克尔变换(FHT)算法分析的基础上,采用准离散汉克尔变换(QDHT)来研究光束在含有空间滤波器的多程激光放大系统中的传输问题。数值计算例表明,用快速汉克尔变换来模拟柱对称大型高功率激光放大系统中的光传输时,是一种非常有用的、快速的算法。Abstract: On the basis of the analysis of various fast Hankel transformation(FHT) algorithms, the quasi-discrete Hankel transformation(QDHT) is chosen to study the beam propagation through multi-pass laser amplifier system containing a spatial filter. Numerical examples show that FHT is a useful fast algorithm to simulate the beam propagation through a large high power laser amplifier system with cylindrical symmetry.
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