Bandwidth extension in noise spectroscopy.
Noise spectroscopy has previously been demonstrated to provide broad-bandwidth excitation with minimal applied RF field strengths. Nonetheless, its application to broadline solid-state NMR spectroscopy has appeared limited by the need to have unrealistically short probe- and receiver-recovery times after pulses. In this Communication, we explain theoretically and demonstrate experimentally that accurate lineshapes can be observed in 2H solid-state NMR spectroscopy even where the probe ringdown time greatly exceeds the required time between sampled data points. Moreover, accurate lineshapes can be observed to +/-125 kHz using RF fields as weak as a few hundred hertz.
Yang
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Department of Chemistry, Cornell University, Ithaca, New York, 14853-1301, USA.
Zax
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DB
D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy; D011092:Polyethylene Glycols / Q000737:chemistry*; D011208:Powders; D011522:Protons; D011846:Radio Waves
D011208:Powders; D011522:Protons; D011092:Polyethylene Glycols