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Quantum metamaterials with magnetic response at optical frequencies

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Alaee Khanghah,  Rasoul
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Gürlek,  Burak
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Cano,  Diego-Martin
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Sandoghdar,  Vahid
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;
Max-Planck-Zentrum für Physik und Medizin, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Alaee Khanghah, R., Gürlek, B., Albooyeh, M., Cano, D.-M., & Sandoghdar, V. (2020). Quantum metamaterials with magnetic response at optical frequencies. Physical Review Letters, Editors' Suggestion, 125: 063601. doi:10.1103/PhysRevLett.125.063601.


Cite as: http://hdl.handle.net/21.11116/0000-0005-A35E-A
Abstract
We propose novel quantum antennas and metamaterials with strong magnetic response at optical frequencies. Our design is based on the arrangement of natural atoms with only electric dipole transition moments at distances smaller than a wavelength of light but much larger than their physical size. In particular, we show that an atomic dimer can serve as a magnetic antenna at its antisymmetric mode to enhance the decay rate of a magnetic transition in its vicinity by several orders of magnitude. Furthermore, we study metasurfaces composed of atomic bilayers with and without cavities and show that they can fully reflect the electric and magnetic fields of light, thus, forming nearly perfect electric/magnetic mirrors. The proposed quantum metamaterials can be fabricated with available state-of-the-art technologies and promise several applications both in classical optics and quantum engineering.