A5075296351- Advanced NMR Techniques and Applications
- Atomic and Subatomic Physics Research
- NMR spectroscopy and applications
- Molecular spectroscopy and chirality
- Advanced MRI Techniques and Applications
- Magneto-Optical Properties and Applications
- Quantum optics and atomic interactions
- Electron Spin Resonance Studies
- Synthesis and biological activity
- Fluorine in Organic Chemistry
- Metal complexes synthesis and properties
- Quantum, superfluid, helium dynamics
- Hip disorders and treatments
- Enzyme Structure and Function
- Characterization and Applications of Magnetic Nanoparticles
- Advanced Chemical Physics Studies
- Phosphorus compounds and reactions
- Geophysics and Sensor Technology
- Mass Spectrometry Techniques and Applications
- Organophosphorus compounds synthesis
- Chemical Synthesis and Analysis
- Crystal structures of chemical compounds
- Molecular Spectroscopy and Structure
- Magnetic properties of thin films
- Spectroscopy and Quantum Chemical Studies
University of Wisconsin–Madison
2019-2023
Aarhus University
1973-1979
We demonstrate a transversely polarized spin-exchange pumped noble gas comagnetometer which suppresses systematic errors from longitudinal polarization. Rb atoms as well $^{131}$Xe and $^{129}$Xe nuclei are simultaneously perpendicular to pulsed bias field. Both Xe isotopes' nuclear magnetic resonance conditions satisfied by frequency modulation of the pulse repetition rate. The detect precession. highlight importance magnetometer phase shifts when performing comagnetometry. For detection...
Abstract The 31 P P and 13 C coupling constants in 1,6‐diphosphatriptycene have been obtained from analysis of its proton decoupled C n.m.r. spectra. More accurate data, however, resulted simultaneous the spectra P( C) satellite couplings are strongly influenced by proximity orientation phosphorus lone pair electrons. first an aromatic diphosphine is reported.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRelative signs of spin-spin coupling constants involving carbon-13 from off-resonance proton decouplingS. Sorensen, R. S. Hansen, and H. J. JakobsenCite this: Am. Chem. Soc. 1973, 95, 15, 5080–5081Publication Date (Print):July 1, 1973Publication History Published online1 May 2002Published inissue 1 July 1973https://pubs.acs.org/doi/10.1021/ja00796a067https://doi.org/10.1021/ja00796a067research-articleACS PublicationsRequest reuse permissionsArticle...
In this paper, we describe a new approach to the continuous operation of transverse spin-exchange optically pumped NMR gyroscope that utilizes modulation both applied bias field and optical pumping. We demonstrate simultaneous, excitation 131Xe 129Xe using hybrid real-time demodulation Xe precession custom least-squares fitting algorithm. present rotation rate measurements with device, common suppression factor ∼1400, an angle random walk 21 μHz/Hz, instability ∼480 nHz after ∼1000 s.
Inertial navigation systems generally consist of timing, acceleration, and orientation measurement units. Although much progress has been made towards developing primary timing sources such as atomic clocks, acceleration units often require calibration. Nuclear Magnetic Resonance (NMR) gyroscopes, which rely on continuous the simultaneous Larmor precession two co-located polarized noble gases, can be configured to have scale factors that depend first order only fundamental constants. The...
We demonstrate a novel quantum sensor for measuring non-magnetic spin-dependent interactions. This utilizes $^{131}$Xe, $^{129}$Xe, and $^{85}$Rb which are continuously polarized transverse to pulsed bias field. The geometry of this spin-exchange pumped comagnetometer suppresses longitudinal polarization, is an important source systematic error. Simultaneous excitation both Xe isotopes accomplished by frequency modulating the repetition rate field pulses at subharmonics Larmor resonance...
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We present a discussion of our new type dual-species NMR gyro, based on synchronous spin-exchange optical pumping. data comparing single-species and gyros, showing the cancellation magnetic noise in gyros.