Witnessing the survival of time-energy entanglement through biological tissue and scattering media

Abstract

We demonstrate the preservation of time-energy entanglement of near-IR photons through thick biological media ($\le$1.55 mm) and tissue ($\le$ 235 $\mu$m) at room temperature. Using a Franson-type interferometer, we demonstrate interferometric contrast of over 0.9 in skim milk, 2% milk, and chicken tissue. This work supports the many proposed opportunities for nonclassical light in biological imaging and analyses from sub-shot noise measurements to entanglement-enhanced fluorescence imaging, clearly indicating that the entanglement characteristics of photons can be maintained even after propagation through thick, turbid biological samples.

13 pages, 4 figures, 1 table

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Cited by in corpus (4)

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