When the frequency of laser standing wave is higher than the resonant frequency of atoms, the atoms will be focused on the wavenode of the standing wave.
当激光驻波场的频率大于原子的共振频率时，原子由于受到偶极力的作用将被会聚到驻波的波节处。
2
Increasing a speed parameter for each water node, we adopt the idea of neighboring regions spread to derivate the evolution formula of water wave with disturbance.
采用邻域传播的思想，为每个水结点增加一个速度参数，推导出水面受到扰动后，水波的演变公式。
3
The node is used as sampling flag and the beat-wave fringe fraction is measured with double frequency interferometer combined by optical components.