中文摘要：

在不同位置和激光辐照能量的条件下，采用传声器采集并提取了等离子体冲击波的压强值及其起始时间信息，分析了等离子体冲击波在空气中的传播规律，拟合得到了冲击波声压值与激光辐照能量的关系函数。结果表明，激光等离子体冲击波以球面波形式在空气中进行传播，其声压值与激光辐照能量呈非线性的正相关关系。

英文摘要：

Under different laser irradiation energies and positions, the pressure value and onset time of laser plasma shock waves are collected and extracted with test microphones, the propagation law of plasma shock waves in air is analyzed, and the relation function between sound pressure value of shock waves and laser irradiation energy is fitted. The results indicate that laser plasma shock waves propagate in the forms of spherical waves and the relationship between their sound pressure values and laser irradiation energy is nonlinear and positive.