Media of asymmetric atomic systems as low-frequency radiation sources.

Piotr Gladysz; Karolina Slowik

doi:10.1117/12.2567963

20 August 2020 Media of asymmetric atomic systems as low-frequency radiation sources.

Piotr Gladysz, Karolina Slowik

Proceedings Volume 11499, Terahertz Emitters, Receivers, and Applications XI; 114990G (2020) https://doi.org/10.1117/12.2567963
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

If a two-level atomic system characterized by inversion symmetry in space is coupled to a classical electromagnetic field, it undergoes Rabi oscillations where the population flips between the ground and excited levels. We investigate a scenario, where a system of broken inversion symmetry is used instead. In such case the dynamics is modified for the following reason: Eigenstates of an asymmetric system can be characterized with a permanent electric dipole moment originating from the polarization of charges, which plays a significant role of an additional source of dipole radiation. Its frequency corresponds to the Rabi frequency of population transfer between the eigenstates and therefore is optically tunable with the intensity of the driving field. We construct the numerical solver to simulate the medium of such asymmetric systems driven by the laser beam and by the Bloch-Maxwell equations calculate the generated radiation's propagation.

Conference Presentation

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Piotr Gladysz and Karolina Slowik "Media of asymmetric atomic systems as low-frequency radiation sources.", Proc. SPIE 11499, Terahertz Emitters, Receivers, and Applications XI, 114990G (20 August 2020); https://doi.org/10.1117/12.2567963

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