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Minimum laser intensities to trigger a discharge for differently polarized laser irradiations at various applied potentials ( gap).
Probability of laser triggering of discharges at varying gap lengths and potentials for two laser intensities: (a) and (b) .
Variation of threshold gap and maximum gap (see Fig. 2) with applied potential for two laser intensities. The discharge probability is near unity for gaps smaller than the threshold value and zero for gaps larger than the maximum value.
Typical current signals for discharges with and without laser triggering and current limiting diode (CLD): (a) CLD, no laser triggering, breakdown gaps are from at at ; (b) CLD, laser triggering at intensity; (c) no CLD, laser triggering at intensity of , the peak current at the is about .
Pt80/Ir20 cathode wire surface: (a) before and (b) after irradiation by single laser triggering trial at laser intensity: .
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