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New Physics Sae Mulli

Electromagnetically Induced Transparency in the 5S$_{1/2}$-5P$_{3/2}$-4D$_{5/2}$ Transition of Cold $^{87}$Rb Atoms

Pyeong Woo KIM, Han Seb Moon

Published Jan 31, 2018• 0 citations
Publisher
DOI
10.3938/npsm.68.129

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Resonant two-photon absorption and electromagnetically induced transparency in open ladder-type atomic system

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We have experimentally and theoretically studied resonant two-photon absorption (TPA) and electromagnetically induced transparency (EIT) in the open ladder-type atomic system of the 5S(1/2) (F = 1)-5P(3/2) (F' = 0, 1, 2)-5D(5/2) (F″ = 1, 2, 3) transitions in (87)Rb atoms. As the coupling laser intensity was increased, the resonant TPA was transformed to EIT for the 5S(1/2) (F = 1)-5P(3/2) (F' = 2)-5D(5/2) (F″ = 3) transition. The transformation of resonant TPA into EIT was numerically calculated for various coupling laser intensities, considering all the degenerate magnetic sublevels of the 5S(1/2)-5P(3/2)-5D(5/2) transition. From the numerical results, the crossover from TPA to EIT could be understood by the decomposition of the spectrum into an EIT component owing to the pure two-photon coherence and a TPA component caused by the mixed term.

Optics Express•Mar 18, 2013•20 citations
Electromagnetically Induced Transparency in the 5S1/2_{1/2}1/2​-5P3/2_{3/2}3/2​-4D5/2_{5/2}5/2​ Transition of Cold 87^{87}87Rb Atoms
Photoassociation of 85^{85}85Rb Atoms in 0u+0_{u}^{+}0u+​ States Near the 5S+5P Atomic Limits
The characteristics of electromagnetically induced transparency in a medium of cooling 85Rb^{85}Rb85Rb atoms
We experimentally observe the counterintuitive absorption peaks in the transition spectra of 5S 1/2 −5P 3/2 −4D 5/2 and 5S 1/2 −5P 3/2 −4D 3/2 in a hot 85 Rb vapor. These spectra are very different from the spectra observed via double resonance optical pumping or electromagnetically induced transparency in the same transitions. These absorption peaks are from electromagnetically induced absorption due to the two-photon atomic coherence effect. We also investigate the relations between these peaks and the powers of the coupling laser and the probe laser experimentally.
We have experimentally and theoretically studied resonant two-photon absorption (TPA) and electromagnetically induced transparency (EIT) in the open ladder-type atomic system of the 5S(1/2) (F = 1)-5P(3/2) (F' = 0, 1, 2)-5D(5/2) (F″ = 1, 2, 3) transitions in (87)Rb atoms. As the coupling laser intensity was increased, the resonant TPA was transformed to EIT for the 5S(1/2) (F = 1)-5P(3/2) (F' = 2)-5D(5/2) (F″ = 3) transition. The transformation of resonant TPA into EIT was numerically calculated for various coupling laser intensities, considering all the degenerate magnetic sublevels of the 5S(1/2)-5P(3/2)-5D(5/2) transition. From the numerical results, the crossover from TPA to EIT could be understood by the decomposition of the spectrum into an EIT component owing to the pure two-photon coherence and a TPA component caused by the mixed term.