Analysis of atomic magnetometry using metasurface optics for balanced polarimetry
Abstract
Atomic magnetometry is one of the most sensitive field-measurement techniques for biological, geo-surveying, and navigational 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 sub-picotesla-level sensitivity and discuss the prospect of realizing compact, high-sensitivity atomic magnetometers with nanophotonic component integration.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 07, 2023
- Source ID
- 10.1364/oe.486311
Entities
People
- Jennifer T. Choy
- Meryem Benelajla
- Steven Carpenter
- Xuting Yang
Organizations
- Office of Naval Research
- University of Wisconsin–Madison