Electromagnetically induced transparency in Λ-systems of ⁸⁷Rb atom in magnetic field

ABSTRACT

The electromagnetically induced transparency (EIT) observations in two Λ-systems of ⁸⁷Rb atom, $|5^2{S}_{1/2}F=1⟩\to |5^2{P}_{3/2}{F}^{\prime }=1⟩\leftarrow |5^2{S}_{1/2}F=2⟩$ and $|5^2{S}_{1/2}F=1⟩\to |5^2{P}_{3/2}{F}^{\prime }=2⟩\leftarrow |5^2{S}_{1/2}F=2⟩$ have been investigated in detail and the results are found consistent with our proposed theoretical models. The second Λ-system provides EIT signal with higher magnitude than the first system, both in the absence and in the presence of an applied magnetic field. The observed steeper slope of the EIT signal in the presence of the magnetic field can enable one to achieve tight frequency locking of lasers using these EIT signals.

KEYWORDS:

• Electromagnetically induced transparency
• Λ-systems
• splitting of EIT peaks
• Lindblad master equation

Acknowledgments

The authors are thankful to S. Singh and V. Singh for their help during the experiment.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

Charu Mishra is grateful for financial support from RRCAT, Indore under HBNI, Mumbai program.