Atomic magnetometer
Abstract
An atomic magnetometer is disclosed which uses a pump light beam at a D1 or D2 transition of an alkali metal vapor to magnetically polarize the vapor in a heated cell, and a probe light beam at a different D2 or D1 transition to sense the magnetic field via a polarization rotation of the probe light beam. The pump and probe light beams are both directed along substantially the same optical path through an optical waveplate and through the heated cell to an optical filter which blocks the pump light beam while transmitting the probe light beam to one or more photodetectors which generate electrical signals to sense the magnetic field. The optical waveplate functions as a quarter waveplate to circularly polarize the pump light beam, and as a half waveplate to maintain the probe light beam linearly polarized.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1069121
- Patent Number(s):
- 8212556
- Application Number:
- 12/686,109
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2010 Jan 12
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Schwindt, Peter, and Johnson, Cort N. Atomic magnetometer. United States: N. p., 2012.
Web.
Schwindt, Peter, & Johnson, Cort N. Atomic magnetometer. United States.
Schwindt, Peter, and Johnson, Cort N. Tue .
"Atomic magnetometer". United States. https://www.osti.gov/servlets/purl/1069121.
@article{osti_1069121,
title = {Atomic magnetometer},
author = {Schwindt, Peter and Johnson, Cort N},
abstractNote = {An atomic magnetometer is disclosed which uses a pump light beam at a D1 or D2 transition of an alkali metal vapor to magnetically polarize the vapor in a heated cell, and a probe light beam at a different D2 or D1 transition to sense the magnetic field via a polarization rotation of the probe light beam. The pump and probe light beams are both directed along substantially the same optical path through an optical waveplate and through the heated cell to an optical filter which blocks the pump light beam while transmitting the probe light beam to one or more photodetectors which generate electrical signals to sense the magnetic field. The optical waveplate functions as a quarter waveplate to circularly polarize the pump light beam, and as a half waveplate to maintain the probe light beam linearly polarized.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 03 00:00:00 EDT 2012},
month = {Tue Jul 03 00:00:00 EDT 2012}
}
Works referenced in this record:
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