Conference paper
Non-paraxial beam to push and pull microparticles
In
Aip Conference Proceedings
—
2011, Volume 1398, Issue 1, pp. 162-164
Abstract
We discuss a feasibility of the pulling (backward) force acting on a spherical microparticle in a non-paraxial Bessel beam. The effect can be explained by the strong interaction of particle's multipoles or by the conservation of momentum in the system “photons-particle.” It is remarkable that the puling force revealed does not require the beam focusing or high-index ambient medium.
The necessary condition of arising of the backward force is the strong non-paraxiality of an electromagnetic beam. We expect this phenomenon will open new horizons in optical micromanipulation.
| Language: | English |
|---|---|
| Publisher: | American Institute of Physics |
| Year: | 2011 |
| Pages: | 162-164 |
| Proceedings: | 4th International Workshop on Theoretical and Computational Nanophotonics |
| Series: | Uden Navn |
| Journal subtitle: | Fourth International Workshop on Theoretical and Computational Nanophotonics |
| ISBN: | 0735409684 and 9780735409682 |
| ISSN: | 15517616 and 0094243x |
| Types: | Conference paper |
| DOI: | 10.1063/1.3644245 |
