Circuit diagram of the dc pulsed power supply.
(Color online) Image of the dc pulsed power supply. At the bottom left are the HV power supply and trigger connections. In the center is the FET switch on a copper heat sink while on the right are the transformers with BNC connectors out for each transformer with a common symmetrically connected earth.
(Color online) Output voltage pulse measured (from the positive output transformer) at and (inset) the switching time of FET1.
(Color online) Terahertz pulse from the GaAs wafer with an applied electric field of for both the dc supply (solid) and the pulsed supply (dashed) and (inset) the base line from showing the improved signal-to-noise ratio.
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