Quantum Spectroscopy of Plasmonic Nanostructures. Kalashnikov, D. A., Pan, Z., Kuznetsov, A. I., & Krivitsky, L. A. Physical Review X, 4(1):011049, March, 2014.
Quantum Spectroscopy of Plasmonic Nanostructures [link]Paper  doi  abstract   bibtex   
We use frequency-entangled photons, generated via spontaneous parametric down conversion, to measure the broadband spectral response of an array of gold nanoparticles exhibiting Fano-type plasmon resonance. Refractive-index sensing of a liquid is performed by measuring the shift of the array resonance. This method is robust in excessively noisy conditions compared with conventional broadband transmission spectroscopy. Detection of a refractive-index change is demonstrated with a noise level 70 times higher than the signal, which is shown to be inaccessible with the conventional transmission spectroscopy. Use of low-photon fluxes makes this method suitable for measurements of photosensitive biosamples and chemical substances.
@article{kalashnikov_quantum_2014,
	title = {Quantum {Spectroscopy} of {Plasmonic} {Nanostructures}},
	volume = {4},
	url = {http://link.aps.org/doi/10.1103/PhysRevX.4.011049},
	doi = {10.1103/PhysRevX.4.011049},
	abstract = {We use frequency-entangled photons, generated via spontaneous parametric down conversion, to measure the broadband spectral response of an array of gold nanoparticles exhibiting Fano-type plasmon resonance. Refractive-index sensing of a liquid is performed by measuring the shift of the array resonance. This method is robust in excessively noisy conditions compared with conventional broadband transmission spectroscopy. Detection of a refractive-index change is demonstrated with a noise level 70 times higher than the signal, which is shown to be inaccessible with the conventional transmission spectroscopy. Use of low-photon fluxes makes this method suitable for measurements of photosensitive biosamples and chemical substances.},
	number = {1},
	urldate = {2016-05-30TZ},
	journal = {Physical Review X},
	author = {Kalashnikov, Dmitry A. and Pan, Zhenying and Kuznetsov, Arseniy I. and Krivitsky, Leonid A.},
	month = mar,
	year = {2014},
	pages = {011049}
}

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