Chiral force of guided light on an atom
arXiv:1802.08377 · doi:10.1103/PhysRevA.97.063849
Abstract
We calculate the force of a near-resonant guided light field of an ultrathin optical fiber on a two-level atom. We show that, if the atomic dipole rotates in the meridional plane, the magnitude of the force of the guided light depends on the field propagation direction. The chirality of the force arises as a consequence of the directional dependencies of the Rabi frequency of the guided driving field and the spontaneous emission from the atom. This provides a unique method for controlling atomic motion in the vicinity of an ultrathin fiber.
arXiv commenttext and figures were revised, and a new discussion was added
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- Force of light on a two-level atom near an ultrathin optical fiber
- Torque of guided light on an atom near an optical nanofiber
- Optical forces on atoms subject to higher-order Poincaré vortex modes
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