title: THz-waves channeling in a monolithic saddle-coil for Dynamic Nuclear Polarization enhanced NMR.
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.
authors: Institut de Physique de la Matire Condense, Ecole Polytechnique Fédérale de Lausanne, Station 3, CH-1015 Lausanne, Switzerland. alessandro.macor@epfl.ch
authors: A
authors: A
authors: Macor
authors: E
authors: E
authors: de Rijk
authors: G
authors: G
authors: Annino
authors: S
authors: S
authors: Alberti
authors: J-Ph
authors: JP
authors: Ansermet
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D004574:Electromagnetic Fields; D004583:Electrons; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation* / Q000379:methods; D015233:Models, Statistical; D011846:Radio Waves