dorsal/arxiv
View SchemaNonlinear magneto-optical rotation with frequency-modulated light in the geophysical field range
| Authors | V. Acosta, M. P. Ledbetter, S. M. Rochester, D. Budker, D. F. Jackson-Kimball, D. C. Hovde, W. Gawlik, S. Pustelny, J. Zachorowski |
|---|---|
| Categories | |
| ArXiv ID | physics/0602109 |
| URL | https://arxiv.org/abs/physics/0602109 |
| DOI | 10.1103/PhysRevA.73.053404 |
| Journal | Phys. Rev. A 73, 053404 (2006) |
Abstract
Recent work investigating resonant nonlinear magneto-optical rotation (NMOR) related to long-lived ($\tau\ts{rel} \sim 1 {\rm s}$) ground-state atomic coherences has demonstrated potential magnetometric sensitivities exceeding $10^{-11} {\rm G/\sqrt{Hz}}$ for small ($\lesssim 1 {\rm \mu G}$) magnetic fields. In the present work, NMOR using frequency-modulated light (FM NMOR) is studied in the regime where the longitudinal magnetic field is in the geophysical range ($\sim 500 {\rm mG}$), of particular interest for many applications. In this regime a splitting of the FM NMOR resonance due to the nonlinear Zeeman effect is observed. At sufficiently high light intensities, there is also a splitting of the FM NMOR resonances due to ac Stark shifts induced by the optical field, as well as evidence of alignment-to-orientation conversion type processes. The consequences of these effects for FM-NMOR-based atomic magnetometry in the geophysical field range are considered.
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"abstract": "Recent work investigating resonant nonlinear magneto-optical rotation (NMOR)\nrelated to long-lived ($\\tau\\ts{rel} \\sim 1 {\\rm s}$) ground-state atomic\ncoherences has demonstrated potential magnetometric sensitivities exceeding\n$10^{-11} {\\rm G/\\sqrt{Hz}}$ for small ($\\lesssim 1 {\\rm \\mu G}$) magnetic\nfields. In the present work, NMOR using frequency-modulated light (FM NMOR) is\nstudied in the regime where the longitudinal magnetic field is in the\ngeophysical range ($\\sim 500 {\\rm mG}$), of particular interest for many\napplications. In this regime a splitting of the FM NMOR resonance due to the\nnonlinear Zeeman effect is observed. At sufficiently high light intensities,\nthere is also a splitting of the FM NMOR resonances due to ac Stark shifts\ninduced by the optical field, as well as evidence of alignment-to-orientation\nconversion type processes. The consequences of these effects for FM-NMOR-based\natomic magnetometry in the geophysical field range are considered.",
"arxiv_id": "physics/0602109",
"authors": [
"V. Acosta",
"M. P. Ledbetter",
"S. M. Rochester",
"D. Budker",
"D. F. Jackson-Kimball",
"D. C. Hovde",
"W. Gawlik",
"S. Pustelny",
"J. Zachorowski"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.73.053404",
"journal_ref": "Phys. Rev. A 73, 053404 (2006)",
"title": "Nonlinear magneto-optical rotation with frequency-modulated light in the geophysical field range",
"url": "https://arxiv.org/abs/physics/0602109"
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