Pushing the limit: investigation of hydrodynamic forces on a trapped particle kicked by a laser pulse.Naja Villadsen, Daniel Andreasen, Jesper Hagelskjær, Jan Thøgersen, Alberto Imparato, Søren Rud KeidingOptics express2015We introduce a new optical technique where a train of short optical pulses is utilized to disturb a trapped microscopic particle. Using fast (250 kHz) and accurate (nm) detection of the position of… (More)