Optical Motion Detection

Abstract

Detecting the motion of an object involves the measurement of its position or velocity. In this thesis, we consider optical detection of motion for two different cases: the monitoring of particle displacement in optical tweezers and the detection of surface displacements due to ultrasonic vibrations. In the first part of the thesis, we consider the resolution limit of particle sensing in optical tweezers. In the second part of the thesis, we investigate the optical detection of surface displacements due to ultrasonic vibrations.

Publication
University of Otago