Limits and possibilities of refractive index in atomic systems
arXiv:2007.03027 · doi:10.1016/j.optcom.2021.127583
Abstract
Manipulation of the refractive index has been of growing interest lately. We consider parameters and possibilities of enhancing the absolute-value limit of the linear index in coherent atomic systems. Starting with a review of how two-level transitions - without and with added coherence effects - do not realistically allow for a significantly enhanced index at fixed atomic density, we discuss a possible way around this using wave mixing. This confirms that the only parameters, besides the medium optical depth/density, that can effectively change the value of the attainable index are the frequencies of the involved transitions.
arXiv comment8 pages, 6 figures
References in corpus (9)
- Macroscopic Invisibility Cloaking of Visible Light
- Observation of suppression of light scattering induced by dipole-dipole interactions in a cold atomic ensemble
- Tunable negative refraction without absorption via electromagnetically induced chirality
- Sensitive Detection of Cold Cesium Molecules by Radiative Feshbach Spectroscopy
- Light propagation beyond the mean-field theory of standard optics
- Coherent Scattering of Near-Resonant Light by a Dense, Microscopic Cloud of Cold Two-Level Atoms: Experiment versus Theory
- Radiative atom-atom interactions in optically dense media: Quantum corrections to the Lorentz-Lorenz formula
- Negative refraction with tunable absorption in an active dense gas of atoms
- Photonic crystal optics in cold atomic gases