200 ns pulse high-voltage supply for terahertz field emission

Welsh, G.H. and Turton, D.A. and Jones, D.R. and Jaroszynski, D.A. and Wynne, Klaas (2007) 200 ns pulse high-voltage supply for terahertz field emission. Review of Scientific Instruments, 78 (4). 043103. ISSN 0034-6748

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Abstract

We present a method of generating 200 ns high-voltage (up to 40 kV) pulses operating at repetition rates of up to 100 kHz, which may be synchronized with laser pulses. These supplies are simple to make and were developed for ultrafast terahertz pulse generation from GaAs photoconductive antennas using a high-repetition-rate regeneratively amplified laser. We also show an improvement in signal-to-noise ratio over a continuous dc bias field and application of the supply to terahertz pulse generation.