Abstract
Raman scattering is an inelastic scattering process with chemical specificity to molecular bonds. Because it is a coherent process, the autocorrelation function of its intensity fluctuations can be treated similarly as in the case of the quasi-elastic scattering that is the basis of photon correlation spectroscopy (PCS). This article discuses the possibility of such a new optical characterization method, Raman correlation spectroscopy (RCS). If the phase behavior of Raman scattering is constant or slow enough compared to the diffusion of particles in a dispersion, RCS can work as a variation of PCS with similar instrumentation as PCS and could become a useful addition for nanoparticle characterization research. This article also discusses the effect of incoherent fluorescence in the data analysis of RCS.
Published Version
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