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Optical rotation in excess of 100 rad generated by Rb vapor in a multipass cell

Author(s): Li, S; Vachaspati, P; Sheng, D; Dural, N; Romalis, Michael V

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Abstract: Paramagnetic Faraday rotation is a powerful technique for atom sensing widely used in quantum nondemolition measurements, fundamental symmetry tests, and other precision measurements. We demonstrate the use of a multipass optical cell for Faraday rotation spectroscopy and observe polarization rotation in excess of 100 rad from spin-polarized Rb vapor. Unlike optical cavities, multipass cells have a deterministic number of light passes and can be used to measure large optical rotations. We also observe a tenfold suppression of transverse spin relaxation when Rb atoms are placed in a coherent superposition state immune to spin-exchange collisions.
Publication Date: Dec-2011
Electronic Publication Date: 6-Dec-2011
Citation: Li, S, Vachaspati, P, Sheng, D, Dural, N, Romalis, MV. (2011). Optical rotation in excess of 100 rad generated by Rb vapor in a multipass cell. PHYSICAL REVIEW A, 84 (10.1103/PhysRevA.84.061403
DOI: doi:10.1103/PhysRevA.84.061403
ISSN: 1050-2947
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW A
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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