Propagation of optically tunable coherent radiation in a gas of polar molecules.

ABSTRACT: Coherent, optically dressed media composed of two-level molecular systems without inversion symmetry are considered as all-optically tunable sources of coherent radiation in the microwave domain. A theoretical model and a numerical toolbox are developed to confirm the main finding: the generation of low-frequency radiation, and the buildup and propagation dynamics of such low-frequency signals in a medium of polar molecules in a gas phase. The physical mechanism of the signal generation relies on the permanent dipole moment characterizing systems without inversion symmetry. The molecules are polarized with a DC electric field yielding a permanent electric dipole moment in the laboratory frame; the direction and magnitude of the moment depend on the molecular state. As the system is resonan

SUBMITTER: Gladysz P 

PROVIDER: S-EPMC7572405 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature