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当探测器材料受激光辐照时，由于吸收激光的能量，从而在材料体内形成一个不均匀分布的温度场，由于材料是连续分布的介质，其各部分不能自由地膨胀，相互制约，从而产生热应力。一旦靶材中产生的热应力超过靶材的破坏强度，便会使材料造成永久性的损伤破坏。当辐照激光功率密度不高时，产生的热应力对靶材的破坏是一种十分重要的破坏机制。采用解析方法，研究了连续波化学激光辐照探测器材料时产生的温升及热应力，讨论了不同激光参数（ 强度、波型、波长及脉冲持续时间） 与温度变化及热应力之间的变化关系，以及造成探测器材料热应力损伤的激光强度阈值。
When the detector material is irradiated by laser light, due to the absorption of the energy of the laser, an inhomogeneous temperature field is formed in the material body. Because the material is a continuous distribution medium, its parts can not freely expand and restrict each other, resulting in Thermal Stress. Once the thermal stress generated in the target exceeds the breaking strength of the target, it will cause permanent damage to the material damage. When the irradiation laser power density is not high, the thermal stress generated by the destruction of the target is a very important mechanism of damage. Analytical methods were used to study the temperature rise and thermal stress induced by continuous wave chemical laser irradiation on the detector material. The effects of different laser parameters (intensity, mode, wavelength and pulse duration) on temperature and thermal stress were discussed Variation, and laser intensity thresholds that cause thermal stress damage to the detector material.