TABLE II.
Characteristics of the pressure waveforms measured at F2 at different energy levels (PRF=5 Hz, n=30) and normalized peak positive pressure determined based on theoretical calculation at z=−0.1 mm.
| Laser energy E(%) | Peak pos. pressure (MPa) | Peak arrival time (ns) | Beam length Δz (mm) | Beam width Δx (mm) | Full width at half maximum (FWHM) (ns) | Theoretical peak pos. pressure (normalized) |
|---|---|---|---|---|---|---|
| 9.3 | 15.0 ± 1.8 | 177 769 ± 8 | 1.6 ± 0.2 | 0.20 ± 0.03 | 24.5 ± 1.6 | 1 |
| 21 | 22.4 ± 1.6 | 177 747 ± 5 | 2.0 ± 0.2 | 24.1 ± 1.6 | 1.52 | |
| 65 | 25.9 ± 3.9 | 177 696 ± 7 | 33.1 ± 5.5 | 2.81 |