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arXiv:1312.3105 · Physical Review X

Quantum Spectroscopy of Plasmonic Nanostructures

Dmitry A. Kalashnikov, Zhenying Pan, Arseniy I. Kuznetsov, Leonid A. Krivitsky

Published Mar 25, 2014• 65 citations
arXivHTMLPDF

Abstract

Ultrasensitive optical sensing based on surface plasmons requires nonintrusive weak light and a large signal-to-noise ratio. Using quantum mechanically entangled photon pairs, experimentalists exploit the quantum entanglement for noise cancellation and achieve sensing at the single-photon scale and in the presence of a noise level 70 times higher than the signal.

DOI
10.1103/physrevx.4.011049

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Ultrasensitive optical sensing based on surface plasmons requires nonintrusive weak light and a large signal-to-noise ratio. Using quantum mechanically entangled photon pairs, experimentalists exploit the quantum entanglement for noise cancellation and achieve sensing at the single-photon scale and in the presence of a noise level 70 times higher than the signal.
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