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Self-Referenced Subcycle Metrology of Quantum Fields
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DOI：10.1002/lpor.202200706.png)
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Abstract
En 中文
A new time-domain method for subcycle metrology of quantum electric fields using a combination of a third order nonlinear optical process and homodyne detection with a local oscillator (LO) field is proposed and analyzed. 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, this method unlocks novel opportunities toward terahertz and mid-infrared quantum field metrologies.
Keywords:
balanced homodyne detection
cat states
electro-optic sampling
quantum metrology
quantum vacuum
ultrabroadband
Journal
L
IF:
10
Papers:
3.7K
Citations:
2.1W