Linear and quadratic Stark effect studies of the Cs ground state using Faraday-Ramsey spectroscopy

Ulrich Rasbach; Christian Ospelkaus; Antoine Weis

doi:10.1117/12.468883

30 May 2002 Linear and quadratic Stark effect studies of the Cs ground state using Faraday-Ramsey spectroscopy

Ulrich Rasbach, Christian Ospelkaus, Antoine Weis

Proceedings Volume 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine; (2002) https://doi.org/10.1117/12.468883
Event: XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), 2001, Minsk, Belarus

Abstract

Spin alignment created by optical pumping with linearly polarized resonance radiation in a thermal beam of cesium atoms is allowed to evolve in static electric and/or magnetic fields over a distance of 30 cm and is probed downstream via the paramagnetic Faraday rotation. When scanning the applied fields typical Ramsey fringes are obtained, although no oscillating fields are used. With a suitably chosen field geometry one observes a linear Stark effect, which may be interpreted in terms of the Aharonov- Casher phase shift and which allows to calibrate the electric field. In another geometry the technique can be used to measure the electric tensor polarizability of the Cs ground state. This polarizability is suppressed by 6 or 7 orders of magnitude with respect to the scalar polarizability. The measurement is expected to shine more light on a long standing discrepancy between theory and experiment.

Citation Download Citation

Ulrich Rasbach, Christian Ospelkaus, and Antoine Weis "Linear and quadratic Stark effect studies of the Cs ground state using Faraday-Ramsey spectroscopy", Proc. SPIE 4749, ICONO 2001: Novel Trends in Nonlinear Laser Spectroscopy and Optical Diagnostics and Lasers in Chemistry, Biophysics, and Biomedicine, (30 May 2002); https://doi.org/10.1117/12.468883

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