TY  - JOUR
AU  - Suefke, Martin
AU  - Liebisch, Alexander
AU  - Blümich, Bernhard
AU  - Appelt, Stephan
TI  - External high-Quality-factor Resonator tunes up nuclear magnetic resonance
JO  - Nature physics
VL  - 11
SN  - 1745-2481
CY  - Basingstoke
PB  - Nature Publishing Group
M1  - FZJ-2015-04804
SP  - 767-771
PY  - 2015
AB  - The development of powerful sensors for the detection of weak electromagnetic fields is crucial for many spectroscopic applications, in particular for nuclear magnetic resonance (NMR). Here, we present a comprehensive theoretical model for boosting the NMR signal-to-noise ratio, validated by liquid-state 1H, 129Xe and 6Li NMR experiments at low frequencies, using an external resonator with a high quality-factor combined with a low-quality-factor input coil. In addition to an enhanced signal-to-noise ratio, this approach exhibits striking features such as a high degree of flexibility with respect to input coil parameters and a square-root dependence on the sample volume, and signifies an important step towards compact NMR spectroscopy at low frequencies with small and large coils.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000360709200022
DO  - DOI:10.1038/nphys3382
UR  - https://juser.fz-juelich.de/record/202605
ER  -