EFFECTIVE ABSORPTION OF AEROSOL HEATED BY LASER

Thermal blooming induced by aerosol is discussed in laser beam propagation though atmosphere. We give the effective absorption coefficient α_pff(t). Because of the limited conductivity of air, the increment of temperature of air heated by aerosol absorbing energy from laser beam is imhomogeneous, which lead to the α_pff(t) dependent on time. The delay time t_p, when the α_pff(t)arrives at the maximum value, is dependent on the radius of aerosol.