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Nonlinear Correlation Spectroscopy (NLCS)

Geissbuehler, Matthias
Shcheslavskiy, Vladislav
Bocchio, Noelia L.
Leutenegger, Marcel
Märki, Iwan
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Published in Nano Letters. 2012, vol. 12, no. 3, p. 1668-1672
Abstract We present a novel concept for optical spectroscopy called nonlinear correlation spectroscopy (NLCS). NLCS analyses coherent field fluctuations of the second and third harmonic light generated by diffusing nanoparticles. Particles based on noncentrosymmetric nonlinear materials such as KNbO3 show a strong second as well as third harmonic response. The method and the theory are introduced and experimental NLCS results in fetal calf serum are presented showing the promising selectivity of this technique for measurement in complex biological environments.
Keywords Optical spectroscopyFluorescence correlation spectroscopyNonlinear correlation spectroscopyThird-harmonic generationSecond-harmonic generationNonlinear optics
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Other version: http://pubs.acs.org/doi/abs/10.1021/nl300070n
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GEISSBUEHLER, Matthias et al. Nonlinear Correlation Spectroscopy (NLCS). In: Nano Letters, 2012, vol. 12, n° 3, p. 1668-1672. https://archive-ouverte.unige.ch/unige:37108

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Deposited on : 2014-06-03

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