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Selective Excitation of Multiple-Quantum Coherence in Nuclear Magnetic Resonance

Warren, W. S. and Sinton, S. and Weitekamp, D. P. and Pines, A. (1979) Selective Excitation of Multiple-Quantum Coherence in Nuclear Magnetic Resonance. Physical Review Letters, 43 (24). pp. 1791-1794. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:WARprl79

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Abstract

Wideband selective n-quantum excitation in the NMR of coupled spins is demonstrated for the first time. By a combination of multiple pulse averaging and phase shifts ϕ a pure n-quantum excitation operator can be produced (n=2π / ϕ). This allows enhancement of normally weak n-quantum transitions. Selective excitation of the zero- and four-quantum transitions in benzene illustrates this approach. Extensions to selective absorption of only groups of n photons in other regimes of spectroscopy are straight-forward, in principle.


Item Type:Article
Additional Information:©1979 The American Physical Society. Received 24 September 1979. We thank G. Drobny, J. Murdoch, and J. Tang for illuminating discussions. One of us (W.S.W.) acknowledges receipt of a National Science Foundation Graduate Fellowship. This work was supported by the Division of Materials Sciences, Office of Basic Energy Sciences, under Contract No. W-7405-Eng-48.
Record Number:CaltechAUTHORS:WARprl79
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:WARprl79
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.43.1791
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10859
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:13 Jun 2008
Last Modified:18 Sep 2014 18:11

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