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Yang L, Pang H, Wei Y, Quan W. Optimizing noble gas pressure for enhanced self-compensation in spin-exchange relaxation-free comagnetometers. OPTICS EXPRESS 2023; 31:33274-33286. [PMID: 37859111 DOI: 10.1364/oe.500923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/28/2023] [Indexed: 10/21/2023]
Abstract
The coupling of electron spin and nuclear spin through spin-exchange collisions compensates for external magnetic field interference in the spin-exchange relaxation-free (SERF) comagnetometer. However, the compensation ability for magnetic field interference along the detection axis is limited due to the presence of nuclear spin relaxation. This paper aims to enhance the self-compensation capability of the system by optimizing the pressure of the noble gas during cell filling. Models are established to describe the relationships between the nuclear spin polarization, the polarizing magnetic field of nuclei, the magnetic field suppression factors, and the pressure of the noble gas in the K-Rb-21Ne atomic ensemble. Experiments are conducted using five cells with different pressure. The results indicate that in the positive pressure area, the nuclear spin polarization decreases while the equivalent magnetic field experienced by the noble gas increases with increasing pressure. The magnetic field suppression factor for transverse fields increases as the pressure increases, leading to a decrease in the ability to suppress low-frequency magnetic field interference. Moreover, at the cell temperature of 180°C and a transverse residual field gradient of 4.012 nT/cm, the system exhibits its strongest capability to suppress transverse magnetic field interference when the pressure of 21Ne is around 0.7 atm.
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Zhu Y, Hilty C, Savukov I. Dynamic Nuclear Polarization Enhanced Nuclear Spin Optical Rotation. Angew Chem Int Ed Engl 2021; 60:8823-8826. [PMID: 33462963 DOI: 10.1002/anie.202016412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/16/2021] [Indexed: 11/09/2022]
Abstract
Nuclear spin optical rotation (NSOR) has been investigated as a magneto-optical effect, which holds the potential for applications, including hybrid optical-nuclear magnetic resonance (NMR) spectroscopy and gradientless imaging. The intrinsic nature of NSOR renders its detection relatively insensitive, which has prevented it moving from a proof of concept to a method supporting chemical characterizations. In this work, the dissolution dynamic nuclear polarization technique is introduced to provide nuclear spin polarization, increasing the signal-to-noise ratio by several thousand times. NSOR signals of 1 H and 19 F nuclei are observed in a single scan for diluted compounds, which has made this effect suitable for the determination of electronic transitions from a specific nucleus in a large molecule.
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Affiliation(s)
- Yue Zhu
- Chemistry Department, Texas A&M University, 3255 TAMU, College Station, TX, USA
| | - Christian Hilty
- Chemistry Department, Texas A&M University, 3255 TAMU, College Station, TX, USA
| | - Igor Savukov
- New Mexico Consortium, 4200 W. Jemez Rd, Suite 301, Los Alamos, NM, 87544, USA
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3
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Zhu Y, Hilty C, Savukov I. Dynamic Nuclear Polarization Enhanced Nuclear Spin Optical Rotation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yue Zhu
- Chemistry Department Texas A&M University, 3255 TAMU College Station TX USA
| | - Christian Hilty
- Chemistry Department Texas A&M University, 3255 TAMU College Station TX USA
| | - Igor Savukov
- New Mexico Consortium 4200 W. Jemez Rd, Suite 301 Los Alamos NM 87544 USA
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4
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Arvanitaki A, Geraci AA. Resonantly detecting axion-mediated forces with nuclear magnetic resonance. PHYSICAL REVIEW LETTERS 2014; 113:161801. [PMID: 25361250 DOI: 10.1103/physrevlett.113.161801] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Indexed: 06/04/2023]
Abstract
We describe a method based on precision magnetometry that can extend the search for axion-mediated spin-dependent forces by several orders of magnitude. By combining techniques used in nuclear magnetic resonance and short-distance tests of gravity, our approach can substantially improve upon current experimental limits set by astrophysics, and probe deep into the theoretically interesting regime for the Peccei-Quinn (PQ) axion. Our method is sensitive to PQ axion decay constants between 10(9) and 10(12) GeV or axion masses between 10(-6) and 10(-3) eV, independent of the cosmic axion abundance.
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Affiliation(s)
- Asimina Arvanitaki
- Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada
| | - Andrew A Geraci
- Department of Physics, University of Nevada, Reno, Nevada 89557, USA
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Henner V, Desvaux H, Belozerova T, Marion DJY, Kharebov P, Klots A. Collective effects due to dipolar fields as the origin of the extremely random behavior in hyperpolarized NMR maser: a theoretical and numerical study. J Chem Phys 2013; 139:144111. [PMID: 24116607 DOI: 10.1063/1.4823823] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Numerical simulations based on microscopic approach are used to explore the spin dynamics encountered in the recently reported hyperpolarized (129)Xe NMR maser [D. J. Y. Marion, G. Huber, P. Berthault, and H. Desvaux, ChemPhysChem 9, 1395-1401 (2008)] where series of amplitude modulated rf emissions are observed. The integration of the dynamic features of the electronic detection circuit in the present simulations, based on non-linear Maxwell-Bloch differential equations with dipole-dipole interactions, allows us to prove that the experimentally observed extremely random amplitude modulations crucially require the long-distance dipolar couplings between the nuclear spins with the feedback field acting as an amplifier. The massive dipolar couplings act, when the magnetization is largely tilted off the longitudinal axis, as an apparent transverse self-relaxation mechanism which destroys coherence. This, in particular, explains why the final magnetization after emissions can still be opposite to the magnetic field direction, i.e., being in an unstable state.
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Affiliation(s)
- Victor Henner
- Department of Physics and Astronomy, University of Louisville, Louisville, Kentucky 40292, USA
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Savukov IM, Chen HY, Karaulanov T, Hilty C. Method for accurate measurements of nuclear-spin optical rotation for applications in correlated optical-NMR spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2013; 232:31-38. [PMID: 23685716 DOI: 10.1016/j.jmr.2013.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 04/09/2013] [Accepted: 04/15/2013] [Indexed: 06/02/2023]
Abstract
The nuclear-spin optical rotation (NSOR) effect recently attracted much attention due to potential applications in combined optical-NMR spectroscopy and imaging. Currently, the main problem with applications of NSOR is low SNR and accuracy of measurements. In this work we demonstrate a new method for data acquisition and analysis based on a low-power laser and an emphasis on software based processing. This method significantly reduces cost and is suitable for application in most NMR spectroscopy laboratories for exploration of the NSOR effect. Despite the use of low laser power, SNR can be substantially improved with fairly simple strategies including the use of short wavelength and a multi-pass optical cell with in-flow pre-polarization in a 7 T magnet. Under these conditions, we observed that NSOR signal can be detected in less than 1 min and discuss strategies for further improvement of signal. With higher SNR than previously reported, NSOR constants can be extracted with improved accuracy. On the example of water, we obtained measurements at a level of accuracy of 5%. We include a detailed theoretical analysis of the geometrical factors of the experiment, which is required for accurate quantification of NSOR. This discussion is particularly important for relatively short detection cells, which will be necessary to use in spectroscopy or imaging applications that impose geometrical constraints.
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Affiliation(s)
- I M Savukov
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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7
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Desvaux H. Non-linear liquid-state NMR. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2013; 70:50-71. [PMID: 23540576 DOI: 10.1016/j.pnmrs.2012.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Accepted: 10/31/2012] [Indexed: 06/02/2023]
Affiliation(s)
- Hervé Desvaux
- CEA, IRAMIS, SIS2M, UMR CEA/CNRS 3299, Laboratoire Structure et Dynamique par Résonance Magnétique, CEA/Saclay, Gif-sur-Yvette, France.
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8
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Cai C, Lin Y, Cai S, Sun H, Zhong J, Chen Z. Flat pancake distant dipolar fields for enhancement of intermolecular multiple-quantum coherence signals. J Chem Phys 2012; 136:094503. [PMID: 22401448 DOI: 10.1063/1.3690110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Intermolecular multiple-quantum coherences (iMQCs) originated from distant dipolar field (DDF) possess some appealing unique properties for magnetic resonance imaging (MRI). DDF is usually induced with continuous wave (i.e., sine- or square-wave) magnetization modulation in the whole sample. In this article, a spatially localized and enhanced DDF was optimally tailored in a thin slice with an adiabatic inversion pulse. Evidence was provided to show that careful tailoring of the spatially localized DDF can generate highly efficient iMQC signals, with more than two-fold enhancement compared to the conventional sine-wave magnetization modulation method, and 1.5 times of that with the square-wave modulation under the similar condition. Theoretical predictions, simulation results, and experimental verifications agree well with each other. Practical implementation of this approach for efficient iMQC MRI was explored.
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Affiliation(s)
- Congbo Cai
- Department of Electronic Science and Communication Engineering, Fujian Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China
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Rushchanskii KZ, Kamba S, Goian V, Vanek P, Savinov M, Prokleska J, Nuzhnyy D, Knízek K, Laufek F, Eckel S, Lamoreaux SK, Sushkov AO, Lezaić M, Spaldin NA. A multiferroic material to search for the permanent electric dipole moment of the electron. NATURE MATERIALS 2010; 9:649-654. [PMID: 20639893 DOI: 10.1038/nmat2799] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Accepted: 06/05/2010] [Indexed: 05/29/2023]
Abstract
We describe the first-principles design and subsequent synthesis of a new material with the specific functionalities required for a solid-state-based search for the permanent electric dipole moment of the electron. We show computationally that perovskite-structure europium barium titanate should exhibit the required large and pressure-dependent ferroelectric polarization, local magnetic moments and absence of magnetic ordering at liquid-helium temperature. Subsequent synthesis and characterization of Eu(0.5)Ba(0.5)TiO(3) ceramics confirm the predicted desirable properties.
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Affiliation(s)
- K Z Rushchanskii
- Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
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10
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Branca RT, Galiana G, Warren WS. Enhanced nonlinear magnetic resonance signals via square wave dipolar fields. J Chem Phys 2008; 129:054502. [PMID: 18698909 PMCID: PMC2669773 DOI: 10.1063/1.2962976] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
This report introduces a new approach that enhances nonlinear solution magnetic resonance signals from intermolecular dipolar interactions. The resulting signals can theoretically be as large as the full equilibrium magnetization. Simple, readily implemented pulse sequences using square-wave magnetization modulation simultaneously refocus all even order intermolecular multiple quantum coherences, leading to a substantial net signal enhancement, complex nonlinear dynamics, and improved structural sensitivity under realistic conditions.
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Affiliation(s)
- R T Branca
- Center for Molecular and Biomolecular Imaging, Duke University, Durham, North Carolina 27708, USA.
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Marion DJY, Huber G, Berthault P, Desvaux H. Observation of Noise‐Triggered Chaotic Emissions in an NMR‐Maser. Chemphyschem 2008; 9:1395-401. [PMID: 18523949 DOI: 10.1002/cphc.200800113] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Denis J-Y Marion
- Laboratoire de Structure et Dynamique par Résonance Magnétique, URA CEA/CNRS 331, Service de Chimie Moléculaire, CEA/Saclay, 91191 Gif-sur-Yvette, France
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12
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Effects on 1H and 129Xe NMR spectra of large magnetization created by dissolved laser-polarized xenon. CR CHIM 2008. [DOI: 10.1016/j.crci.2007.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Hayden ME, Baudin E, Tastevin G, Nacher PJ. NMR time reversal as a probe of incipient turbulent spin dynamics. PHYSICAL REVIEW LETTERS 2007; 99:137602. [PMID: 17930637 DOI: 10.1103/physrevlett.99.137602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Indexed: 05/25/2023]
Abstract
We demonstrate time reversal of nuclear spin dynamics in highly magnetized dilute liquid (3)He-(4)He mixtures through effective inversion of long-range dipolar interactions. These experiments, which involve using magic sandwich NMR pulse sequences to generate spin echoes, probe the spatiotemporal development of turbulent spin dynamics and promise to serve as a versatile tool for the study and control of dynamic magnetization instabilities. We also show that a repeated magic sandwich pulse sequence can be used to dynamically stabilize modes of nuclear precession that are otherwise intrinsically unstable. To date, we have extended the effective precession lifetimes of our magnetized samples by more than three orders of magnitude.
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Affiliation(s)
- M E Hayden
- Physics Department, Simon Fraser University, 8888 University Drive, Burnaby BC, Canada V5A 1S6
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14
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Chen Z, Zhu X, Cai S, Zhong J. Suppression of undesired peaks due to residual intermolecular dipolar interactions in liquid NMR. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.09.110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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15
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Bouchard LS, Wehrli FW, Chin CL, Warren WS. Structural anisotropy and internal magnetic fields in trabecular bone: coupling solution and solid dipolar interactions. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2005; 176:27-36. [PMID: 15953742 DOI: 10.1016/j.jmr.2005.05.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2005] [Revised: 04/27/2005] [Accepted: 05/02/2005] [Indexed: 05/03/2023]
Abstract
We investigate the use of intermolecular multiple-quantum coherence to probe structural anisotropy in trabecular bone. Despite the low volume fraction of bone, the bone-water interface produces internal magnetic field gradients which modulate the dipolar field, depending on sample orientation, choice of dipolar correlation length, correlation gradient direction, and evolution time. For this system, the probing of internal magnetic field gradients in the liquid phase permits indirect measurements of the solid phase dipolar field. Our results suggest that measurements of volume-averaged signal intensity as a function of gradient strength and three orthogonal directions could be used to non-invasively measure the orientation of structures inside a sample or their degree of anisotropy. The system is modeled as having two phases, solid and liquid (bone and water), which differ in their magnetization density and magnetic susceptibility. A simple calculation using a priori knowledge of the material geometry and distribution of internal magnetic fields verifies the experimental measurements as a function of gradient strength, direction, and sample orientation.
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Affiliation(s)
- Louis-S Bouchard
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
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