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arXiv · 1901.09226

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

Armen Sargsyan·Ara Tonoyan·Aram Papoyan·David Sarkisyan
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Abstract

Dark resonances were formed via electromagnetically induced transparency for the first time involving magnetically-induced $ΔF = \pm2$ 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 $ΔF = +2$ ($ΔF =-2$) transition, the coupling laser tuned to $ΔF = +1$ ($ΔF =-1$) transition of the hyperfine $Λ$-system must be $σ^+$ ($σ^-$) polarized, manifesting anomalous circular dichroism.

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Armen Sargsyan, Ara Tonoyan, Aram Papoyan, David Sarkisyan. 2019-01-26. Dark resonance formation with magnetically-induced transitions: extension of spectral range and giant circular dichroism. https://doi.org/10.1364/ol.44.001391

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