【摘要】 利用共轭梯度法与快速傅立叶变换(CCGM-FFT)相结合的方法来研究近场多体散射问题。通过将求解的格林函数方程离散化,应用CCGM-FFT法来进行数值求解。由于CCGM减小了计算机内存,在CCGM迭代过程中矩阵与向量的乘积运算又采用了FFT算法,进而减少CPU的计算时间,因此可以有效的处理大尺寸三维目标的近场电磁散射。CCGM-FFT是一种有效的数值模拟方法,数值模拟结果为实验分析提供了参考。更多还原

【Abstract】 Application of complex conjugate gradient method(CCGM) and fast Fourier transform(FFT) to study multitudinous scattering in near-field optics.By discretizing the Green function and using CCGM FFT to solve the integral equation.With CCGM to reduce memory storage and CPU computing time in each iterative procedure,FFT to accelerate matrix multiply vector,respectively.Thus CCGM-FFT is an effective method to solve 3-Dimensional large bodies and the results give a reference to experiments.更多还原