Dynamic light scattering (DLS) technique is a simple and yet powerful technique for
characterizing particle properties and dynamics in complex liquids and gases, including
dusty plasmas. Intensity fluctuation in DLS experiments often studied using correlation
analysis with assumption that the fluctuation is statistically stationary. In this study, the
temporal variation of the nonstationary intensity fluctuation is analyzed directly to show the
existence of fractal characteristics by employing wavelet scalogram approach. Wavelet …