Dispersive radio frequency electrometry using Rydberg atoms in a prism-shaped atomic vapor cell

作者：Fan H Q; Kumar S; Kuebler H; Shaffer J P^*

来源：Journal of Physics B: Atomic, Molecular and Optical Physics , 2016, 49(10): 104004.

DOI：10.1088/0953-4075/49/10/104004

• Rydberg atoms
• atom-based sensing
• electromagnetically induced transparency
• precision measurement
• spectroscopy
• radio frequency fields

We introduce a method to measure radio frequency (RF) electric fields (E-fields) using atoms contained in a prism-shaped vapor cell. The method utilizes the concept of electromagnetically induced transparency with Rydberg atoms. The RF E-field induces changes in the index of refraction of the vapor resulting in deflection of the probe laser beam as it passes through the prism-shaped vapor cell. We measured a minimum RF E-field of 8.25 mu Vcm(-1) with a sensitivity of similar to 46.5 mu Vcm(-1)Hz(-1/2). The experimental results agree with a numerical model that includes dephasing effects. We discuss possible improvements to obtain higher sensitivity for RF E-field measurements.

• 出版日期2016-5-28