Image correlation spectroscopy characterization of plasmonic random media

Recently, techniques and devices using plasmonic nanoparticles have increasingly merged into a wide range of applications. However, until present a non-destructive characterization of plasmonic random media (PRM) via optical methods is still absent. Under this background, we studied how the randomness of particle properties (e.g. particle orientation, compartmentalization and aggregation status) in a PRM affects the collective optical response of the media. In our study, we found that the precision of Image Correlation Spectroscopy (ICS) is highly sensitive to the distribution of particle characteristics. In this thesis, we demonstrate our new optical characterization method which allow us to indicate the properties of particles embedded in a PRM by using the percentage ratio between manually counted and ICS calculated particle density.