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Broadband pulses for excitation and inversion in I = 1 systems

Institution:	1. École Normale Supérieure de Lyon, Universite Claude Bernard Lyon I, Université de Lyon, 69342 Lyon Cedex 07, France;2. Universidad Nacional de Río Negro. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural. San Carlos de Bariloche, Río Negro, Argentina;3. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural. San Carlos de Bariloche, Río Negro, Argentina;4. Centro Atómico Bariloche (CNEA) and CONICET, R8402AGP Bariloche, Argentina;5. Instituto Balseiro, Universidad Nacional de Cuyo, R8402AGP Bariloche, Argentina;1. Department of Electronics Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen 361005, China;2. Department of Communication Engineering, Xiamen University, Xiamen 361005, China;3. Department of Imaging Sciences, University of Rochester, Rochester, NY 14642, USA

Abstract:	New composite pulses for exciting and inverting three-level systems are presented. The π/2 pulse is designed for use in quadrupole echo spectroscopy and has a bandwidth comparable to existing sequences and is slightly shorter. Two new broadband π pulses are presented which have bandwidths larger than other existing I = 1 inverting pulses without being significantly longer. Numerical calculations and experimental examples demonstrate the usefulness of the new sequences.

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