This method achieves spectral characterization of biphotons, indicating new insights into quantum measurement techniques.
We present a technique for spectral characterization of biphotons generated through spontaneous parametric down-conversion. By hybridizing a Hong-Ou-Mandel interferometer with a N00N-state interferometer, we successfully recover the Joint Spectral Intensity from a single time-domain measurement.
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Corona-Aquino et al. (2025) studied this question.
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