@article{14499,
  keywords = {Laser ablation, Aluminum, Acoustical measurements, Excimer lasers},
  author = {Mark A Shannon and Boris Rubinsky and Richard E Russo},
  title = {Mechanical stress power measurements during high-power laser ablation},
  abstract = {<p>Laser-induced stresses have been studied extensively to understand macroscopic phenomenon during high-power laser ablation of solids. Recently, a norm of stress times the rate of change in stress, similar to mechanical stress power, was monitored acoustically in the target and ambient medium during high-power laser-material interactions, and compared with stress measurements. This study investigates the relationship between stress and the stress powerlike measurements (<em>P</em>*), and their dependence on laser energy, intensity, and spot size. The importance of different components of stress on the measurements is also considered. Results from ablation of aluminum targets by a 30 ns uv excimer laser are presented that show changes in <em>P</em>* with laser energy coupling, and the dependence of <em>P</em>* on laser intensity and stress components. Potential issues are raised for further study of stress power as a diagnostic tool of laser-material interactions and as a fundamental mechanism of laser-energy coupling.</p>},
  year = {1996},
  booktitle = {Journal of Applied Physics},
  journal = {Journal of Applied Physics},
  series = {Journal of Applied Physics},
  volume = {80},
  pages = {4665-4672},
  month = {10/1996},
  doi = {10.1063/1.363450},
  language = {eng},
}