Abstract

Recently Junio et al. showed that optical trapping potential energies for nanoparticles can be determined by an ensemble analysis of multiple particles in an optical bottle [1, 2]. This paper reports a new study that uses statistical analysis to investigate the spatial distribution of the particles inside the optical bottle. The purpose of this study is to determine the 2D spatial distribution of the trapping potential energy U(r) for polystyrene nanoparticles transiently trapped by a focused Gaussian beam.

© 2013 Japan Society of Applied Physics, Optical Society of America