Abstract
The need for subpicosecond electrical pulses as, for example, a means for testing ultrafast electronic circuitry has become increasingly evident as electronic switching devices are pushing toward the 1-ps limit. .A very successful method of generating picosecond and subpicosecond electrical pulses is based on driving photoconductive switches with ultrashort laser pulses.1 Recent work has adapted this approach to the so-called sliding contact method of pulse generation.2 Here a charged transmission line fabricated on a photoconductive substrate is shortened via the photocarriers generated by an ultrashort laser pulse focused between the lines.
© 1989 Optical Society of America
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