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      Radio-frequency-modulated Rydberg states in a vapor cell

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          Abstract

          We measure strong radio-frequency (RF) electric fields using rubidium Rydberg atoms prepared in a room-temperature vapor cell as field sensors. Electromagnetically induced transparency is employed as an optical readout. We RF-modulate the 60\(S_{1/2}\) and 58\(D_{5/2}\) Rydberg states with 50~MHz and 100~MHz fields, respectively. For weak to moderate RF fields, the Rydberg levels become Stark-shifted, and sidebands appear at even multiples of the driving frequency. In high fields, the adjacent hydrogenic manifold begins to intersect the shifted levels, providing rich spectroscopic structure suitable for precision field measurements. A quantitative description of strong-field level modulation and mixing of \(S\) and \(D\) states with hydrogenic states is provided by Floquet theory. Additionally, we estimate the shielding of DC electric fields in the interior of the glass vapor cell.

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          Author and article information

          Journal
          2016-01-25
          10.1088/1367-2630/18/5/053017
          1601.06840

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          Custom metadata
          6 pages, 4 figures
          physics.atom-ph

          Atomic & Molecular physics

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