Title: Optically pumped, radio-frequency atomic magnetometry with feedback stabilization

Abstract

An optically pumped, atomic magnetometer incorporates a feedback system for stabilizing the magnetic bias field and suppressing unwanted background fields. The magnetic bias field is applied to a vapor cell containing host atoms of two different species, each of which resonates at a different Larmor frequency when both are subjected to the same magnetic bias field. One species provides the feedback for stabilizing the bias field, thereby creating a stabilizing magnetometer portion that nulls out the unwanted background fields. The other species provides magnetic field detection or signal reception on a radio communication frequency of interest, thereby creating a signal magnetometer portion that permits detection of the signal at the radio communication frequency.

Inventors:

Schwindt, Peter D. D.; Claussen, Neil; Bainbridge, Jonathan Edward

Issue Date:

2023-11-21

Research Org.:

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:

USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:

2293887

Patent Number(s):

11821966

Application Number:

17/550,503

Assignee:

National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

DOE Contract Number:  

NA0003525

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/14/2021

Country of Publication:

United States

Language:

English