Table 2.
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 energyE(%) | 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 |