![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A novel and versatile optical method, based on the phenomenon of total internal reflection and useful for studying the motion of small particles in a moving fluid very close to the interface between a fluid and an optically flat solid, is described. Initial tests using 0.2 to 1 micron silica particles and 3.2 micron polystyrene spheres have demonstrated the effectiveness of the method and provide a basis for several extensions, which are discussed.