【摘要】 采用Monte Carlo方法,对脉冲激光烧蚀所产生的烧蚀粒子在环境气体中的输运过程进行了数值模拟。研究了不同脉冲时间间隔与交叠区位置振荡幅度之间的关系,结果表明脉冲时间间隔影响了交叠区的振荡强弱,随着脉冲时间间隔的增加,交叠区的振荡幅度减小,脉冲时间间隔为10μs时达到最小值,而后开始增大。所得结果为进一步研究烧蚀粒子在环境气体中的输运动力学过程提供了理论依据。更多还原

【Abstract】 The transport process of Si particles produced in ambient gases by pulsed laser ablation was simulated by using Monte Carlo method.The effect of pulse interval on the mixed region was studied.The results show that the oscillation of mixed region is decided by pulse interval.The oscillation amplitude of the mixed region first decreased to a minimum at 10 μs of pulse interval and then increased with increasing pulse interval.These results provide theoretical foundation for the further investigation of the transport dynamics of the ablated particles in ambient gases by pulsed laser deposition.更多还原