Resonant radiation pressure on neutral particles in a waveguide
Optics
2009-11-07 v1 Condensed Matter
Atomic and Molecular Clusters
Abstract
A theoretical analysis of electromagnetic forces on neutral particles in an hollow waveguide is presented. We show that the effective scattering cross section of a very small (Rayleigh) particle can be strongly modified inside a waveguide. The coupling of the scattered dipolar field with the waveguide modes induce a resonant enhanced backscattering state of the scatterer-guide system close to the onset of new modes. The particle effective cross section can then be as large as the wavelength even far from any transition resonance. As we will show, a small particle can be strongly accelerated along the guide axis while being highly confined in a narrow zone of the cross section of the guide.
Keywords
Cite
@article{arxiv.physics/0103017,
title = {Resonant radiation pressure on neutral particles in a waveguide},
author = {R. Gomez-Medina and P. San Jose and A. Garcia-Martin and M. Lester and M. Nieto-Vesperinas and J. J. Saenz},
journal= {arXiv preprint arXiv:physics/0103017},
year = {2009}
}
Comments
RevTeX,4 pages,3 PS figures