Simple microwave field imaging technique using hot atomic vapor cells

Abstract

We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 μm spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.

References in corpus (7)

• Optical Magnetometry
• Absolute absorption on the rubidium D lines: comparison between theory and experiment
• Coherent manipulation of Bose-Einstein condensates with state-dependent microwave potentials on an atom chip
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• Imaging of Relaxation Times and Microwave Field Strength in a Microfabricated Vapor Cell
• Widefield Microwave Imaging in Alkali Vapor Cells with sub-100 um Resolution
• Frequency-Tunable Microwave Field Detection in an Atomic Vapor Cell
• Spectroscopy of cesium Rydberg atoms in strong radio-frequency fields
• The hyperfine Paschen-Back Faraday effect
• Imaging Microwave and DC Magnetic Fields in a Vapor-Cell Rb Atomic Clock
• Imaging electric fields in the vicinity of cryogenic surfaces using Rydberg atoms
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• A practical guide to Terahertz imaging using thermal atomic vapour
• Tunable Microwave Magnetic Field Detection based on Rabi Resonance with a Single Cesium-Rubidium Hybrid Vapor Cell
• Microwave spectroscopy of radio-frequency dressed ${}^{87}$Rb
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• Vector detection of AC magnetic fields by Nitrogen-Vacancy centers of single orientation in diamond
• Measuring magnetic field inside a microwave cavity via Rabi resonances in Cs atoms
• Imaging of microwave magnetic field orientation using continuous-wave experiments on nitrogen-vacancy centers in diamond