The Square Law of Brownian Motion of Microobjects in Liquids at Small Temporal and Spatial Scales

This article summarizes a study of the Brownian motion, at small temporal and spatial scales, of microparticles suspended in liquids. Using a phase-sensitive laser spectroscopy method, the thermal diffusion motion of test microparticles have been observed leading to a square law of Brownian motion at sufficiently small time scales.