从光学布洛赫方程出发,对激光驻波场中作用在原子上的光压力进行了求解,求得了轴向光压力和梯度光压力的二阶谐波项的解析解,得到当激光场较强时,光压力的二阶谐波项的作用不再是低强度时的零贡献这一重要结论.
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