A Josephson ultrahigh‐resolution sampling system
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An ultrahigh‐resolution Josephson‐technology sampling system has been designed and tested. A complex test signal containing a 10‐ps rise time was measured and agreed very well with the signal expected from simulations. The intrinsic rise time (step response) of the sampling system is believed to be about 6 ps. External analog circuitry was used to automate the system.
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