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Femtosecond laser stimulation of electrical discharges in submicron and nanoscale gaps
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View: Figures


Image of FIG. 1.
FIG. 1.

Minimum laser intensities to trigger a discharge for differently polarized laser irradiations at various applied potentials ( gap).

Image of FIG. 2.
FIG. 2.

Probability of laser triggering of discharges at varying gap lengths and potentials for two laser intensities: (a) and (b) .

Image of FIG. 3.
FIG. 3.

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.

Image of FIG. 4.
FIG. 4.

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 .

Image of FIG. 5.
FIG. 5.

Pt80/Ir20 cathode wire surface: (a) before and (b) after irradiation by single laser triggering trial at laser intensity: .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Femtosecond laser stimulation of electrical discharges in submicron and nanoscale gaps