Electronic Pulses from Pulsed Field Emission of CNT Cathodes

Figure 3

(Black line) Plots of field emission electronic pulses profile on CNT cathodes irradiated by pulsed laser on different applied voltage of 100 V, 400 V, 700 V, and 1000 V, respectively. The width of emission electronic pulse is 10000 ms. The laser working condition is that the pulse width of and laser pulse-off of are both 10000 ms. The insert (blue squares) is corresponding to the emission current density without laser illumination by field emission.

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