Fig. 1. Test platform for pseudospark switch triggered by laser

Fig. 2. Photo of the pseudospark switch

Fig. 3. Seed electron test platform

Fig. 4. Typical discharge waveforms of the switch

Fig. 5. Influence of laser energy and gas pressure on trigger delay of the switch

Fig. 6. Influence of laser energy and gas pressure on trigger delay jitter of the switch

Fig. 7. Influence of laser energy and working voltage on trigger delay of the switch

Fig. 8. Influence of laser energy and working voltage on trigger delay jitter of the switch

Fig. 9. Influence of target materials on trigger delay and jitter of the switch

Fig. 10. Emitted electron current waveform of magnesium, copper and molybdenum

Fig. 11. Emitted electron current waveform of Mg under different bias voltages

Fig. 12. Schematic diagram of laser irradiation positions

Fig. 13. Switching discharge waveforms triggered on the inner wall of the cathode hole