par Broillet, Stephane;Sato, Akihiro;Geissbuehler, Stefan;Pache, Christophe;Bouwens, Arno ;Lasser, Theo;Leutenegger, Marcel
Référence Optics express, 22, 1, page (782)
Publication Publié, 2014-01
Référence Optics express, 22, 1, page (782)
Publication Publié, 2014-01
Article révisé par les pairs
Résumé : | We present a new method called optical coherence correlation spectroscopy (OCCS) using nanoparticles as reporters of kinetic processes at the single particle level. OCCS is a spectral interferometry based method, thus giving simultaneous access to several sampling volumes along the optical axis. Based on an auto-correlation analysis, we extract the diffusion coefficients and concentrations of nanoparticles over a large concentration range. The cross-correlation analysis between adjacent sampling volumes allows to measure flow parameters. This shows the potential of OCCS for spatially resolved diffusion and flow measurements. |