Recoil momentum due to ablated products in the laser ablation process is the dominant source of thrust generation. The total momentum comprises the laser-supported shock wave in background gas and the momentum due to material flow. Based on experimental studies, the dependence of laser ablation propulsion parameters of metal foils has been investigated in atmospheric air. A Q-switched Nd:YAG laser operating at fundamental (1064 nm) and second harmonics (532 nm) is used to irradiate the target. Each sample's ablation is performed over a range of laser fluence values (10⁶ to 10⁷ J/cm²), which is achieved by varying the incoming laser energy per pulse and adjusting the focused beam spot diameter. The results obtained from these studies showed that the laser ablation propulsion parameters are influenced by laser parameters. Moreover, the target properties also plays significant role in calculating propulsion parameters which vary with wavelength. The highest C_m is obtained for Cu irradiated with 2.2 × 10^–4 Ns/J laser pulse using fundamental harmonics at low laser fluence up to 1.5 × 10⁶ J/cm²while at the highest fluence Fe gives higher C_m 1.810^–4 Ns/J because of the difference in the physical properties of metal foils. As expected, changing the energy per pulse of the laser also affects the laser ablation propulsion efficiency. The Isp for Fe is highest for both harmonics i-e 41,675 s and 3490 s, respectively. The reason behind this is that the optical properties of Fe vary by changing wavelength. Such higher Isp is required for long-range missions, so Fe proved to be the best propellant.

由于激光烧蚀过程中烧蚀产物引起的反冲动量是产生推力的主要来源。总动量包括背景气体中激光支持的激波和材料流动引起的动量。基于实验研究，在大气中研究了金属箔的激光烧蚀推进参数的依赖性。工作在基波 (1064 nm) 和二次谐波 (532 nm) 的 Q 开关 Nd:YAG 激光器用于照射目标。每个样品的烧蚀都在一系列激光通量值（10 ⁶至 10 ⁷  J/cm ²)，这是通过改变每个脉冲的入射激光能量和调整聚焦光束光斑直径来实现的。从这些研究中获得的结果表明，激光烧蚀推进参数受激光参数的影响。此外，目标属性在计算随波长变化的推进参数方面也起着重要作用。最高C _m是用 2.2 × 10 ^–4 Ns/J 激光脉冲使用基波在低激光能量密度下照射到 1.5 × 10 ⁶  J/cm ²时获得的，而在最高能量密度下，Fe 产生更高的C _m 1.810 ^–4Ns/J 因为金属箔的物理性能不同。正如预期的那样，改变每个激光脉冲的能量也会影响激光烧蚀推进效率。Fe 的 Isp 对于两个谐波都是最高的，即分别为 41,675 s 和 3490 s。这背后的原因是 Fe 的光学特性随波长的变化而变化。远程任务需要如此高的 Isp，因此 Fe 被证明是最好的推进剂。