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内混合气溶胶粒子的有效吸收对激光大气传输有着不利影响.以黑碳和氯化钠两种典型成分为例,计算了密度和比热相同情况下,均匀球和分层球模型粒子的有效吸收系数.研究结果表明:有效吸收系数大小与粒子组分混合方式有关.在粒子吸收热量加热大气过程中,黑碳为核的粒子在可见光和近红外波段有效吸收系数更大;均匀球粒子在中红外波段和远红外波段(100 μs后)有效吸收系数更大,而氯化钠为核的粒子在远红外波段(前100μs)有效吸收系数最大.“,”Effective absorption of internal mixed aerosol has severe negative effects on laser transmission in atmosphere.The effective absorption coefficients of homogeneous sphere model,BC-core model and NaCl-core model aerosols,with the same density and specific heat of particle,were discussed by Mie theory.Results show that effective absorption is associated with comprising method.The BC-core sphere particles mainly show superior effective absorption at short wavelength as visible light and infrared light,homogeneous sphere particles mainly super at mid-infrared wavelength and far-infrared wavelength after 100 μs,while NaCl-core particles mainly show larger effective absorption coefficient at far-infrared wavelength at beginning of heating procedure.