Quantum Spectroscopy of Plasmonic Nanostructures

Page view(s)
38
Checked on Sep 25, 2024
Quantum Spectroscopy of Plasmonic Nanostructures
Title:
Quantum Spectroscopy of Plasmonic Nanostructures
Journal Title:
PHYSICAL REVIEW X
Keywords:
Publication Date:
25 March 2014
Citation:
Phys. Rev. X 4, 011049 (2014)
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.
License type:
PublisherCopyrights
Funding Info:
Description:
ISSN:
2160-3308
Files uploaded:

File Size Format Action
fy13-2480.pdf 1.18 MB PDF Open