In order to study the deposition of 52Cr atomic interacted by a focused near-resonant Gaussian standing-laser at 425.55nm wavelength, 3-D simulation was carried out based on both particle-optics and wave-mechanical approaches. The results show that the deposited nano-grating has uniform period along laser vector direction, and similar structure along the direction perpendicular to laser vector. In addition, the deposited nano-grating may be split with the increase of laser power. Due to the wave property, the simulated nano-grating presents obvious interference side peak. All the simulation results provide abundant theory for experiments.%为了研究铬原子经过波长为425.55nm 1维高斯激光驻波会聚作用后的沉积情况,采用原子与激光相互作用的原子轨道方法和波动方法两种理论模型进行了3维仿真.结果表明,同一激光功率条件下,两种方法的仿真条纹在激光束方向上都具有相同的周期性,在垂直激光柬方向上具有非常相似的延展性,即随着激光功率的增加,原本的一条仿真条纹会逐渐分裂开来,由于原子波动性的影响,波动方法仿真的条纹中还有明显的干涉边峰,这种现象随着激光功率的增加而变得更加明显.这些仿真结果为实验提供了更加丰富的理论指导.
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