The energy coupling coefficient is first measured in a 1.06 micrometers laser pulse interaction with Al target in air by using a new method. The timing of plasma absorption processes are also recorded by the techniques of time-resolved measurement. The energy coupling coefficient is within the range of 3-7% and there is not LSD wave ignition with the incident laser intensity in the order of 107-108W/cm2.
"Experimental investigation of 1.06 μm laser interaction with Al target in air", Proc. SPIE 1415, Modeling and Simulation of Laser Systems II, (1 May 1991); doi: 10.1117/12.43689; https://doi.org/10.1117/12.43689