Atom Based Vector Microwave Electrometry Using Rubidium Rydberg Atoms in a Vapor Cell

Abstract

It is clearly important to pursue atomic standards for quantities like electromagnetic fields, time, length and gravity. We have recently shown, using Rydberg states, that Rb atoms in a vapor cell can serve as a practical, compact standard for microwave electric field strength. Here, we demonstrate, for the first time, that Rb atoms excited in a vapor cell can also be used for vector microwave electrometry by using Rydberg atom electromagnetically induced transparency. We describe the measurements necessary to obtain an arbitrary microwave electric field polarization at a resolution of $0.5^{\circ }$. The experiments are compared to theory and found to be in excellent agreement.

References in corpus (5)

• Spatially Resolved Excitation of Rydberg Atoms and Surface Effects on an Atom Chip
• Imaging of microwave fields using ultracold atoms
• Simple microwave field imaging technique using hot atomic vapor cells
• Electric field sensing near the surface microstructure of an atom chip using cold Rydberg atoms
• Rydberg atoms with a reduced sensitivity to dc and low-frequency electric fields

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