Ladder-type electromagnetically induced transparency using nanofiber-guided light in a warm atomic vapor

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https://journals.aps.org/pra/abstract/10.1103/PhysRevA.92.043806

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https://doi.org/10.1103/PhysRevA.92.043806
 http://hdl.handle.net/11603/19312

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2015-10-05

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journal articles
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D. E. Jones, J. D. Franson, and T. B. Pittman, Ladder-type electromagnetically induced transparency using nanofiber-guided light in a warm atomic vapor,Phys. Rev. A 92, 043806 (2015), DOI:https://doi.org/10.1103/PhysRevA.92.043806

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©2015 American Physical Society

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Abstract

We demonstrate ladder-type electromagnetically induced transparency (EIT) using an optical nanofiber suspended in a warm rubidium vapor. The signal and control fields are both guided along the nanofiber, which enables strong nonlinear interactions with the surrounding atoms at relatively low powers. Transit-time broadening is found to be a significant EIT decoherence mechanism in this tightly confined waveguiding geometry. Nonetheless, we observe significant EIT and controlled polarization rotation using control-field powers of only a few microwatts in this relatively robust warm-atom nanofiber system.