Abstract
In this study the effects of neighboring transitions through Doppler broadening on electromagnetically induced absorption and transparency of degenerate two-level system in Rb atoms with respect to circular orthogonal polarization configuration (\(\sigma ^+ - \sigma ^-\)) of coupling and probe lasers have been investigated. The dominance of closed \(F_g=3 \rightarrow F_e=4\) of \(^{85}\hbox {Rb}\) (\(F_g=2 \rightarrow F_e=3\) of \(^{87}\hbox {Rb}\)) D2 transition results in the observation of asymmetric and split electromagnetically induced absorptions at all of transitions regardless of the openness or closing of the transitions even in low intensity regime. Slight differences between the spectra of \(^{85}\hbox {Rb}\) and \(^{87}\hbox {Rb}\) are analyzed by investigating the variation of the spectra of \(^{85}\hbox {Rb}\) with an artificial increase of the hyperfine splittings and accordingly with a decreasing of the neighboring effects.
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Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A2C1005499 and No. 2021R1F1A1052487) and research fund from Chosun University (2021).
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Hassan, A.U., Jadoon, Z.A.S., Kim, JT. et al. Effects of neighboring transitions on electromagnetically induced absorption and transparency in Rb atoms in circular orthogonal polarization configuration. J. Korean Phys. Soc. 82, 907–911 (2023). https://doi.org/10.1007/s40042-023-00769-y
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DOI: https://doi.org/10.1007/s40042-023-00769-y