Version 2 2023-03-07, 17:00Version 2 2023-03-07, 17:00
Version 1 2023-01-12, 14:57Version 1 2023-01-12, 14:57
preprint
posted on 2023-03-07, 17:00authored bySinan Gündoğdu, Stéphane Virally, Marco Scaglia, Denis V. Seletskiy, Andrey S. Moskalenko
We propose and analyze a new time-domain method for subcycle metrology of quantum electric fields using a combination of a 3rd order nonlinear optical process and homodyne detection with a local oscillator (LO) field. The new method enables isolation of intrinsically weak quantum noise contribution by subtraction of the shot noise of the LO on a pulse-by-pulse basis. Together with the centro-symmetric character of the nonlinearity, our method unlocks novel opportunities toward terahertz and mid-infrared quantum field metrologies.
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