Strong Coupling between Single Atoms and Nontransversal Photons

Author(s): Ch. Junge, D. O'Shea, J. Volz, A. Rauschenbeutel

Journal: Physical Review Letters

Volume: 110

Page(s): 213604

Year: 2013

DOI Number: 10.1103/PhysRevLett.110.213604

Link: Link to publication


Light is often described as a fully transverse-polarized wave, i.e., with an electric field vector that is orthogonal to the direction of propagation. However, light confined in dielectric structures such as optical waveguides or whispering-gallery-mode microresonators can have a strong longitudinal polarization component. Here, using single 85Rb atoms strongly coupled to a whispering-gallery-mode microresonator, we experimentally and theoretically demonstrate that the presence of this longitudinal polarization fundamentally alters the interaction between light and matter.


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