Optical coherence correlation spectroscopy (OCCS)

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.


Published in:
Optics Express, 22, 1, 782-802
Year:
2014
Publisher:
Washington, Optical Society of America
ISSN:
1094-4087
Keywords:
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 Record created 2014-01-08, last modified 2018-09-13

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