吾人提出一個新的使用Runge-Kutta法的有限差分波束傳播分析法則(RKFDBPM)。根據我們的模擬結果，RKFDBPM優於使用Crank-Nicolson技巧的傳統有限差分波束傳播法，因爲它具有較佳的計算效率與精確度。
We propose a new finite difference beam propagation method employing the Runge-Kutta algorithm (RKFDBPM). According to our numerical simulation, RKFDBPM is superior to the conventional FDBPM using the Crank-Nicolson scheme (CNFDBPM) because of better computational efficiency and precision.
