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Practical Range Sensing with Thermal Light
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DOI：10.1103/PhysRevApplied.20.014060.png)
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Abstract
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Many quantum sensing suggestions rely on temporal correlations found in photon pairs generated by parametric down-conversion. In this work, we show that the temporal correlations in light with a thermal photon statistics can be equally useful for such applications. Using a subthreshold laser diode as an ultrabright source of thermal light, we demonstrate optical range finding to a distance of up to 1.8 km.
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