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Title: Detection of radio-frequency magnetic fields using nonlinear magneto-optical rotation

Abstract

We describe a room-temperature alkali-metal atomic magnetometer for detection of small, high-frequency magnetic fields. The magnetometer operates by detecting optical rotation due to the precession of an aligned ground state in the presence of a small oscillating magnetic field. The resonance frequency of the magnetometer can be adjusted to any desired value by tuning the bias magnetic field. Based on experimentally measured signal-to-noise ratio, we demonstrate a sensitivity of 100 pG/{radical}(Hz) (rms) in a 3.5-cm-diameter paraffin coated cell. Assuming detection at the photon shot-noise limit, we project a sensitivity as low as 25 pG/{radical}(Hz) (rms)

Authors:
; ; ; ; ;  [1];  [2];  [3]
  1. Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300 (United States)
  2. (Poland)
  3. (United States)
Publication Date:
OSTI Identifier:
20982143
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.75.023405; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DETECTION; MAGNETIC FIELDS; MAGNETO-OPTICAL EFFECTS; MAGNETOMETERS; NONLINEAR OPTICS; NONLINEAR PROBLEMS; PARAFFIN; PRECESSION; RADIOWAVE RADIATION; RESONANCE; ROTATION; SENSITIVITY; SIGNAL-TO-NOISE RATIO; TEMPERATURE RANGE 0273-0400 K; TUNING

Citation Formats

Ledbetter, M. P., Acosta, V. M., Rochester, S. M., Budker, D., Pustelny, S., Yashchuk, V. V., Centrum Badan Magnetooptycznych, Instytut Fizyki im. M. Smoluchowskiego, Uniwersytet Jagiellonski, Reymonta 4, 30-059 Krakow, and Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720. Detection of radio-frequency magnetic fields using nonlinear magneto-optical rotation. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.023405.
Ledbetter, M. P., Acosta, V. M., Rochester, S. M., Budker, D., Pustelny, S., Yashchuk, V. V., Centrum Badan Magnetooptycznych, Instytut Fizyki im. M. Smoluchowskiego, Uniwersytet Jagiellonski, Reymonta 4, 30-059 Krakow, & Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720. Detection of radio-frequency magnetic fields using nonlinear magneto-optical rotation. United States. doi:10.1103/PHYSREVA.75.023405.
Ledbetter, M. P., Acosta, V. M., Rochester, S. M., Budker, D., Pustelny, S., Yashchuk, V. V., Centrum Badan Magnetooptycznych, Instytut Fizyki im. M. Smoluchowskiego, Uniwersytet Jagiellonski, Reymonta 4, 30-059 Krakow, and Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720. Thu . "Detection of radio-frequency magnetic fields using nonlinear magneto-optical rotation". United States. doi:10.1103/PHYSREVA.75.023405.
@article{osti_20982143,
title = {Detection of radio-frequency magnetic fields using nonlinear magneto-optical rotation},
author = {Ledbetter, M. P. and Acosta, V. M. and Rochester, S. M. and Budker, D. and Pustelny, S. and Yashchuk, V. V. and Centrum Badan Magnetooptycznych, Instytut Fizyki im. M. Smoluchowskiego, Uniwersytet Jagiellonski, Reymonta 4, 30-059 Krakow and Advanced Light Source Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720},
abstractNote = {We describe a room-temperature alkali-metal atomic magnetometer for detection of small, high-frequency magnetic fields. The magnetometer operates by detecting optical rotation due to the precession of an aligned ground state in the presence of a small oscillating magnetic field. The resonance frequency of the magnetometer can be adjusted to any desired value by tuning the bias magnetic field. Based on experimentally measured signal-to-noise ratio, we demonstrate a sensitivity of 100 pG/{radical}(Hz) (rms) in a 3.5-cm-diameter paraffin coated cell. Assuming detection at the photon shot-noise limit, we project a sensitivity as low as 25 pG/{radical}(Hz) (rms)},
doi = {10.1103/PHYSREVA.75.023405},
journal = {Physical Review. A},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}
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