Frequency-Tunable Microwave Field Detection in an Atomic Vapor Cell

Abstract

We use an atomic vapor cell as a frequency tunable microwave field detector operating at frequencies from GHz to tens of GHz. We detect microwave magnetic fields from 2.3 GHz to 26.4 GHz, and measure the amplitude of the sigma+ component of an 18 GHz microwave field. Our proof-of-principle demonstration represents a four orders of magnitude extension of the frequency tunable range of atomic magnetometers from their previous dc to several MHz range. When integrated with a high resolution microwave imaging system, this will allow for the complete reconstruction of the vector components of a microwave magnetic field and the relative phase between them. Potential applications include near-field characterisation of microwave circuitry and devices, and medical microwave sensing and imaging.

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Cited by in corpus (20)

• Microwave device characterisation using a widefield diamond microscope
• Electromagnetically-induced transparency, absorption, and microwave field sensing in a Rb vapor cell with a three-color all-infrared laser system
• Quantum sensing of microwave electric fields based on Rydberg atoms
• ElecSus: Extension to arbitrary geometry magneto-optics
• Non-Invasive Imaging Method of Microwave Near Field Based on Solid State Quantum Sensing
• Frequency-Tunable Microwave Field Detection in an Atomic Vapor Cell
• Self-calibrating vector atomic magnetometry through microwave polarization reconstruction
• Optimized ultra-narrow atomic bandpass filters via magneto-optic rotation in an unconstrained geometry
• Absorption spectroscopy and Stokes polarimetry in a ${}^{87}$Rb vapour in the Voigt geometry with a 1.5 T external magnetic field
• High-Tc superconducting detector for highly-sensitive microwave magnetometry
• Phase sensitive quantum spectroscopy with high frequency resolution
• Continuously observing a dynamically decoupled spin-1 quantum gas
• Quantitative optical spectroscopy of ${}^{87}$Rb vapour in the Voigt geometry in DC magnetic fields up to 0.4T
• Microwave Rabi resonances beyond the small-signal regime
• Atomic microwave-to-optical signal transduction via magnetic-field coupling in a resonant microwave cavity
• Tunable Microwave Magnetic Field Detection based on Rabi Resonance with a Single Cesium-Rubidium Hybrid Vapor Cell
• Measuring the polarization of electromagnetic fields using Rabi-rate measurements with spatial resolution: experiment and theory
• Remote detection of rotating machinery with a portable atomic magnetometer
• Accurate vector optically pumped magnetometer with microwave-driven Rabi frequency measurements
• Measuring magnetic field inside a microwave cavity via Rabi resonances in Cs atoms