Energy-partition diagnostic for measuring time-resolved scattering and absorption in burst-mode laser ablation

Z. Qian, J. E. Schoenly, A. Covarrubias, L. Lilge, R. S. Marjoribanks
2014 Review of Scientific Instruments  
We describe an energy-partition diagnostic based on integrating sphere principle for measuring absorption and scattering in plasma-mediated ablation by a high repetition-rate (133 MHz), pulsetrainburst ultrafast-pulse laser. The system time-resolves the partition of elastically scattered laser light into specular reflection, diffuse reflection, and transmission, giving access to per-pulse absorption dynamics. Physical events such as optical breakdown and incubation effects in glass and aluminum are illustrated.
doi:10.1063/1.4866658 pmid:24689558 fatcat:q3li3a5rijamdiev2dxjfjdw2m