Nonlinear Correlation Spectroscopy (NLCS).

Matthias Geissbuehler,Luigi Bonacina,Vladislav Shcheslavskiy,Noelia L. Bocchio,Stefan Geissbuehler,Marcel Leutenegger,Iwan Maerki,Jean-Pierre Wolf,Theo Lasser

Nano Letters（2012）SCI 1区SCI 2区

EPFL STI LOB

被引用43|浏览27

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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 KNbO(3) 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.

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Optical spectroscopy,fluorescence correlation spectroscopy (FCS),nonlinear correlation spectroscopy (NLCS),third-harmonic generation (THG),second-harmonic generation (SHG),nonlinear optics

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