Dark resonance formation with magnetically-induced transitions: extension of spectral range and giant circular dichroism

Abstract

Dark resonances were formed via electromagnetically induced transparency for the first time involving magnetically-induced $\Delta F=\pm 2$ atomic transitions of alkali metal atom, which are forbidden at zero magnetic field. The probability of these transitions undergoes rapid growth when $300-3000$~G magnetic field is applied, allowing formation of dark resonances, widely tunable in the GHz range. It is established that for $\Delta F=+2$ ($\Delta F=-2$) transition, the coupling laser tuned to $\Delta F=+1$ ($\Delta F=-1$) transition of the hyperfine $\Lambda$-system must be ${\sigma }^{+}$ (${\sigma }^{-}$) polarized, manifesting anomalous circular dichroism.

arXiv comment5 pages, 6 figures

References in corpus (8)

• Coherent optical detection of highly excited Rydberg states using electromagnetically induced transparency
• The cooperative Lamb shift in an atomic nanolayer
• Saturated-absorption spectroscopy revisited: atomic transitions in strong magnetic fields ($>$20 mT) with a micrometer-thin cell
• Decoupling of hyperfine structure of Cs $D_1$ line in strong magnetic field studied by selective reflection from a nanocell
• Direct measurement of excited-state dipole matrix elements using electromagnetically induced transparency in the hyperfine Paschen-Back regime
• Giant modification of atomic transitions probabilities induced by magnetic field: forbidden transitions become predominant
• Four-level N-scheme crossover resonances in Rb saturation spectroscopy in magnetic fields
• Coherent control of group index and magneto-optical anisotropy in a multilevel atomic vapor

Cited by in corpus (4)

• Coherent Optical Processes on Cs D${}_2$ line Magnetically Induced Transitions
• Strongest Magnetically Induced Transitions in Alkali Metal Atoms with nuclear spin $3/2$
• Formation of strongly shifted EIT resonances using "forbidden" transitions of Cesium
• Features of Magnetically-induced atomic transitions of Rb D${}_1$ line studied by Doppler-free method based on the second derivative of the absorption spectra