THz-waves channeling in a monolithic saddle-coil for Dynamic Nuclear Polarization enhanced NMR |
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| Authors: | Macor A de Rijk E Annino G Alberti S Ansermet J-Ph |
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| Affiliation: | aInstitut de Physique de la Matire Condense, Ecole Polytechnique Fédérale de Lausanne, Station 3, CH-1015 Lausanne, Switzerland;bSWISS to 12 Sàrl, 1015 Lausanne, Switzerland;cIstituto per i Processi Chimico-Fisici, CNR-IPCF, via G. Moruzzi 1, Pisa, Italy;dCentre de Recherche en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Station 13, CH-1015 Lausanne, Switzerland |
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| Abstract: | ![]()
A saddle coil manufactured by electric discharge machining (EDM) from a solid piece of copper has recently been realized at EPFL for Dynamic Nuclear Polarization enhanced Nuclear Magnetic Resonance experiments (DNP-NMR) at 9.4 T. The corresponding electromagnetic behavior of radio-frequency (400 MHz) and THz (263 GHz) waves were studied by numerical simulation in various measurement configurations. Moreover, we present an experimental method by which the results of the THz-wave numerical modeling are validated. On the basis of the good agreement between numerical and experimental results, we conducted by numerical simulation a systematic analysis on the influence of the coil geometry and of the sample properties on the THz-wave field, which is crucial in view of the optimization of DNP-NMR in solids. |
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| Keywords: | Nuclear Magnetic Resonance (NMR) Dynamic Nuclear Polarization (DNP) THz waves Radio-frequencies Millimeter waves Non-resonant cavities Probe-head |
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