3 papers
physics.atom-ph2026
Sensitivity Scaling and Limits of Cavity Enhancement in Miniaturized Optically Pumped Magnetometers
Christopher H. Kiehl, María Hernández Ruiz, Cristina Sastre Jachimska +1
The sensitivity of miniaturized optically pumped magnetometers (OPMs) is limited by weak atom-light coupling, which an optical cavity can enhance. In this work, we model the photon…
physics.atom-ph2025
Magnetotactic bacterial populations studied with a Pound-Drever-Hall atomic magnetometer
María Hernández Ruiz, Christopher Kiehl, Vito Giovanni Lucivero +1
We demonstrate an optically pumped magnetometer that monitors spin polarization using Pound Drever Hall (PDH) technique. The instrument exhibits a noise floor of 22.2 pT/sqrt(Hz) l…
physics.atom-ph2023
Cavity-enhanced detection of spin polarization in a microfabricated atomic vapor cell
María Hernández Ruiz, Yintao Ma, Hana Medhat +3
We demonstrate continuous Pound-Drever-Hall (PDH) nondestructive monitoring of the electron spin polarization of an atomic vapor in a microfabricated vapor cell within an optical r…