从激光特性、光的波粒二象性出发 ,分析了激光对含能材料的热作用、冲击作用、光化学作用、电离作用等 ,并做了相应的计算。对含能材料激光点火的机理作了概括。结论 :通常情况下 ,热作用是主要的 ;光化学作用对激光波长有很强的选择性 ;电离与等离子体点火要求激光强度远大于 10 10 W /cm2 ;临界点能量随激光强度的增大而减小 Based on the laser characteristics and the wave-particle duality of light, the thermal, impact, photochemical and ionization effects of the laser on the energetic materials are analyzed and the corresponding calculations are made. The mechanism of laser ignition of energetic materials is summarized. CONCLUSIONS: In general, thermal effects are dominant; photochemical effects have a strong selectivity for laser wavelength; ionization and plasma ignition require laser intensities much greater than 10 10 W / cm 2; the critical point energy increases as the laser intensity increases Decrease