Kerker Effect, Superscattering, and Scattering Dark State in Atomic Antennas
arXiv:2008.03574 · doi:10.1103/PhysRevResearch.2.043409
Abstract
We study scattering phenomena such as the Kerker effect, superscattering, and scattering dark states in a subwavelength atomic antenna consisting of atoms with only electric dipole transitions. We show that an atomic antenna can exhibit arbitrarily large or small scattering cross sections depending on the geometry of the structure and the direction of the impinging light. We also demonstrate that atoms with only an electric dipole transition can exhibit a directional radiation pattern with zero backscattering when placed in a certain configuration. This is a special case of a phenomenon known as the Kerker effect, which typically occurs in the presence of both electric and magnetic transitions. Our findings open a pathway to design highly directional emitters, nonradiating sources, and highly scattering objects based on individually controlled atoms.
arXiv comment14 pages, 12 figures
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Cited by in corpus (5)
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- Kerker-Type Positional Disorder Immune Metasurfaces
- Photon statistics of the light transmitted and reflected by a two-dimensional atomic array
- Interaction of light with subwavelength particles: Revealing the physics of the electric dipole moment in the classical scattering problem
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