Study of EIT resonances in an anti-relaxation coated Rb vapor cell

Mangesh Bhattarai; Vineet Bharti; Vasant Natarajan; Armen Sargsyan; David Sarkisyan

doi:10.1016/j.physleta.2018.09.036

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arXiv · 1803.08746

Study of EIT resonances in an anti-relaxation coated Rb vapor cell

Mangesh Bhattarai·Vineet Bharti·Vasant Natarajan·Armen Sargsyan·David Sarkisyan

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Abstract

We demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done using magnetic sublevels of a hyperfine transition in the D$_1$ line of $^{87}$Rb. The degeneracy of the sublevels is removed by having a magnetic field of value 27 G. The atoms are contained in a room-temperature vapor cell with anti-relaxation coating on the walls. Theoretical analysis based on a two-region model reproduces the experimental spectrum quite well. This ability to have both bright and dark resonances promises applications in sub- and super-luminal propagation of light, and sensitive magnetometry.

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Mangesh Bhattarai, Vineet Bharti, Vasant Natarajan, Armen Sargsyan, David Sarkisyan. 2018-03-23. Study of EIT resonances in an anti-relaxation coated Rb vapor cell. https://doi.org/10.1016/j.physleta.2018.09.036

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