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arXiv · 2012.09465

Chirality-enabled optical dipole potential energy for two-level atoms

Vassilis. E. Lembessis·Koray Koksal·Jun Yuan·Mohamed Babiker
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Abstract

We consider the optical dipole potential energy, which arises from the interaction of a two-level atom with a circularly polarized Laguerre-Gaussian laser beam of small waist. The beam is characterized by the existence of a longitudinal electric field component which is responsible for the appearance of a chiral term in the optical dipole potential energy. This term reverses sign if either the winding number or the wave polarization of the beam reverses sign. We propose a scheme of a bi-chromatic vortex interaction with the two-level atom in which the resulting optical dipole potential is fully chiral.

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Vassilis. E. Lembessis, Koray Koksal, Jun Yuan, Mohamed Babiker. 2020-12-17. Chirality-enabled optical dipole potential energy for two-level atoms. https://doi.org/10.1103/physreva.103.013106

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