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Updated: May 24, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Optimal control design of band-selective excitation pulses that accommodate relaxation and RF inhomogeneity
Thomas E Skinner1, Naum I Gershenzon, Manoj Nimbalkar
1Physics Department, Wright State University, Dayton, OH 45435, USA. thomas.skinner@wright.edu
Abstract:
Existing optimal control protocols for mitigating the effects of relaxation and/or RF inhomogeneity on broadband pulse performance are extended to the more difficult problem of designing robust, refocused, frequency selective excitation pulses. For the demanding case of T(1) and T(2) equal to the pulse length, anticipated signal losses can be significantly reduced while achieving nearly ideal frequency selectivity. Improvements in performance are the result of allowing residual unrefocused magnetization after applying relaxation-compensated selective excitation by optimized pulses (RC-SEBOPs). We demonstrate simple pulse sequence elements for eliminating this unwanted residual signal.
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