Analysis of atomic magnetometry using metasurface optics for balanced polarimetry
arXiv:2210.04952 · doi:10.1364/OE.486311
Abstract
Atomic magnetometry is one of the most sensitive field-measurement techniques for biological, geo-surveying, and navigation applications. An essential process in atomic magnetometry is measurement of optical polarization rotation of a near-resonant beam due to its interaction with atomic spins under an external magnetic field. In this work, we present the design and analysis of a silicon-metasurface-based polarization beam splitter that have been tailored for operation in a rubidium magnetometer. The metasurface polarization beam splitter operates at a wavelength of 795 nm and has a transmission efficiency > 83% and a polarization extinction ratio > 20 dB. We show that these performance specifications are compatible with magnetometer operation in miniaturized vapor cells with subpicotesla-level sensitivity and discuss the prospect of realizing compact, high-sensitivity atomic magnetometers with nanophotonic component integration.
References in corpus (9)
- Dielectric Metasurfaces for Complete Control of Phase and Polarization with Subwavelength Spatial Resolution and High Transmission
- Optical Magnetometry
- Subwavelength-thick Lenses with High Numerical Apertures and Large Efficiency Based on High Contrast Transmitarrays
- Large Area Metalenses: Design, Characterization, and Mass Manufacturing
- Varifocal zoom imaging with large area focal length adjustable metalenses
- Nonlinear magneto-optical rotation with frequency-modulated light
- A Dielectric Metasurface Optical Chip for the Generation of Cold Atoms
- Shot-noise-limited magnetometer with sub-pT sensitivity at room temperature
- A Rubidium M-magnetometer for Measurements on Solid State Spins