%0 Journal Article %J Chemical Physics Letters %D 2002 %T Selective excitation in dipole coupled systems %A Walls, J. D. %A Marjanska, M. %A Sakellariou, D. %A Castiglione, F. %A Pines, A. %K spin-diffusion %X

In this Letter the possibility of selective excitation in coupled multispin systems is studied theoretically. A general method of transforming any selective pulse developed for uncoupled systems into a form that is selective in coupled systems is presented. This is accomplished by adding a small perturbation to a decoupling radiofrequency (RF) field. When viewed in an interaction frame given by the decoupling RF field, this method generates, in an averaged sense, a propagator similar to the propagator of uncoupled spins under a shaped RF pulse. Preliminary experimental results are presented for the case of selective excitation in proton nuclear magnetic resonance in liquid crystals. (C) 2002 Elsevier Science B.V. All rights reserved.

%B Chemical Physics Letters %V 357 %P 241-248 %8 May 10 %@ 0009-2614 %G English %U ://WOS:000175958700012 %N 3-4 %M WOS:000175958700012 %! Selective excitation in dipole coupled systems %R Doi 10.1016/S0009-2614(02)00493-1