It is investigated using finite difference time domain method based on Drude model.

采用基于等离子体物理模型的时域有限差分法对其进行了研究。

The property of the near field subwavelength imaging in a metal thin-film structure is investigated using finite difference time domain method based on Drude model.

采用基于等离子体物理模型的时域有限差分方法模拟了金属薄膜近场成像特性；采用薄膜传输矩阵方法计算了金属薄膜对倏逝波分量的放大作用。

It is calculated with finite difference method.

采用有限差分法对其进行求解。

The numerical schemes of DNS are based on finite difference methods.

DNS的数值方法基于有限差分法。

We use finite difference method to solve electromagnetic wave equation.

采用有限差分方法，对波动方程求数值解。