Generalized theory of double-resonance optical pumping of {sup 4}He
We present extensions to the theory of double-resonance laser pumping of {sup 4}He in the context of magnetometer instrumentation. This extended theory allows for arbitrary optical polarization, magnetic resonance (H{sub 1}) coil orientation, and overall instrument orientation relative to the ambien...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2010-07, Vol.82 (1) |
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| container_title | Physical review. A, Atomic, molecular, and optical physics |
| container_volume | 82 |
| creator | Plante, Michael K. MacFarlane, Duncan L. McGregor, Douglas D. Slocum, Robert E. Sampson, William M. Brown, Andy W. Polatomic, Inc., 1810 North Glenville Drive, Suite 116, Richardson, Texas 75081 |
| description | We present extensions to the theory of double-resonance laser pumping of {sup 4}He in the context of magnetometer instrumentation. This extended theory allows for arbitrary optical polarization, magnetic resonance (H{sub 1}) coil orientation, and overall instrument orientation relative to the ambient magnetic field. Steady-state solutions are presented for portions of the extended parameter space. These calculations are used to analyze the shot-noise-limited sensitivities for helium magnetometers for selected parameter values, and we find that linearly polarized light can have a relatively simple orientational dependence for a particular choice of angle between the H{sub 1} coils and the light polarization vector. Calculations are also compared to experimentally measured magnetic resonance curves, and a shot-noise limit on sensitivity of 6 fT/{radical}(Hz) is determined for a particular magnetometer apparatus using a cell 2.4 cm in diameter and 7.5 cm in length. This extended theory can be utilized to select optimal operational parameter values and obtain ideal sensitivities for helium magnetometers. |
| doi_str_mv | 10.1103/PHYSREVA.82.013837 |
| format | Article |
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This extended theory allows for arbitrary optical polarization, magnetic resonance (H{sub 1}) coil orientation, and overall instrument orientation relative to the ambient magnetic field. Steady-state solutions are presented for portions of the extended parameter space. These calculations are used to analyze the shot-noise-limited sensitivities for helium magnetometers for selected parameter values, and we find that linearly polarized light can have a relatively simple orientational dependence for a particular choice of angle between the H{sub 1} coils and the light polarization vector. Calculations are also compared to experimentally measured magnetic resonance curves, and a shot-noise limit on sensitivity of 6 fT/{radical}(Hz) is determined for a particular magnetometer apparatus using a cell 2.4 cm in diameter and 7.5 cm in length. 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A, Atomic, molecular, and optical physics</title><description>We present extensions to the theory of double-resonance laser pumping of {sup 4}He in the context of magnetometer instrumentation. This extended theory allows for arbitrary optical polarization, magnetic resonance (H{sub 1}) coil orientation, and overall instrument orientation relative to the ambient magnetic field. Steady-state solutions are presented for portions of the extended parameter space. These calculations are used to analyze the shot-noise-limited sensitivities for helium magnetometers for selected parameter values, and we find that linearly polarized light can have a relatively simple orientational dependence for a particular choice of angle between the H{sub 1} coils and the light polarization vector. Calculations are also compared to experimentally measured magnetic resonance curves, and a shot-noise limit on sensitivity of 6 fT/{radical}(Hz) is determined for a particular magnetometer apparatus using a cell 2.4 cm in diameter and 7.5 cm in length. 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A, Atomic, molecular, and optical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Plante, Michael K.</au><au>MacFarlane, Duncan L.</au><au>McGregor, Douglas D.</au><au>Slocum, Robert E.</au><au>Sampson, William M.</au><au>Brown, Andy W.</au><au>Polatomic, Inc., 1810 North Glenville Drive, Suite 116, Richardson, Texas 75081</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Generalized theory of double-resonance optical pumping of {sup 4}He</atitle><jtitle>Physical review. A, Atomic, molecular, and optical physics</jtitle><date>2010-07-15</date><risdate>2010</risdate><volume>82</volume><issue>1</issue><issn>1050-2947</issn><eissn>1094-1622</eissn><abstract>We present extensions to the theory of double-resonance laser pumping of {sup 4}He in the context of magnetometer instrumentation. This extended theory allows for arbitrary optical polarization, magnetic resonance (H{sub 1}) coil orientation, and overall instrument orientation relative to the ambient magnetic field. Steady-state solutions are presented for portions of the extended parameter space. These calculations are used to analyze the shot-noise-limited sensitivities for helium magnetometers for selected parameter values, and we find that linearly polarized light can have a relatively simple orientational dependence for a particular choice of angle between the H{sub 1} coils and the light polarization vector. Calculations are also compared to experimentally measured magnetic resonance curves, and a shot-noise limit on sensitivity of 6 fT/{radical}(Hz) is determined for a particular magnetometer apparatus using a cell 2.4 cm in diameter and 7.5 cm in length. This extended theory can be utilized to select optimal operational parameter values and obtain ideal sensitivities for helium magnetometers.</abstract><cop>United States</cop><doi>10.1103/PHYSREVA.82.013837</doi></addata></record> |
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| ispartof | Physical review. A, Atomic, molecular, and optical physics, 2010-07, Vol.82 (1) |
| issn | 1050-2947 1094-1622 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | ELECTROMAGNETIC RADIATION EVEN-EVEN NUCLEI HELIUM 4 HELIUM ISOTOPES INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ISOTOPES LIGHT NUCLEI MAGNETIC FIELDS MAGNETIC RESONANCE MAGNETOMETERS MATHEMATICAL SOLUTIONS MEASURING INSTRUMENTS NOISE NUCLEI OPTICAL PUMPING ORIENTATION POLARIZATION PUMPING RADIATIONS RESONANCE SENSITIVITY STABLE ISOTOPES STEADY-STATE CONDITIONS TENSORS VECTORS VISIBLE RADIATION |
| title | Generalized theory of double-resonance optical pumping of {sup 4}He |
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