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arXiv · 1901.01582

Observation of dual electromagnetically induced transparencies in cold $^{87}Rb$ atoms

Charu Mishra·A. Chakraborty·S. P. Ram·S. Singh·V. B. Tiwari·S. R. Mishra
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Abstract

We have observed two dual electromagnetically induced transparency (EIT) spectra in probe transmission through cold $^{87}Rb$ atoms trapped in a magneto-optical trap (MOT). These dual EIT peaks are generated in two different N-systems formed by probe, coupling and control beams interacting with different levels in $D_{2}$ line transitions of $^{87}Rb$ atom. The dependence of spectral features of two N-systems on driving beams (\textit{i.e.} coupling and control beams) strength and detuning has been investigated. The results show that the dual EIT spectral features in both the N-systems can be manipulated by varying the strength and detuning of both the driving beams. The two N-systems have been modelled theoretically using a density matrix formalism and results have shown a reasonable agreement with the experimental observations.

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Charu Mishra, A. Chakraborty, S. P. Ram, S. Singh, V. B. Tiwari, S. R. Mishra. 2019-01-06. Observation of dual electromagnetically induced transparencies in cold $^{87}Rb$ atoms. https://arxiv.org/abs/1901.01582

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