spurious harmonic response of multipulse quantum sensing sequences
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ID: 154691
2015
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Abstract
Multipulse sequences based on Carr-Purcell decoupling are frequently used for narrow-band signal detection in single-spin magnetometry. We have analyzed the behavior of multipulse sensing sequences under real-world conditions, including finite pulse durations and the presence of detunings. We find that these nonidealities introduce harmonics to the filter function, allowing additional frequencies to pass the filter. In particular, we find that the XY family of sequences can generate signals at the 2f_{ac}, 4f_{ac}, and 8f_{ac} harmonics and their odd subharmonics, where f_{ac} is the ac signal frequency. Consideration of the harmonic response is especially important for diamond-based nuclear-spin sensing where the nuclear magnetic resonance frequency is used to identify the nuclear-spin species, as it leads to ambiguities when several isotopes are present.
| Reference Key |
loretz2015physicalspurious
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|---|---|
| Authors | ;M. Loretz;J. M. Boss;T. Rosskopf;H. J. Mamin;D. Rugar;C. L. Degen |
| Journal | american journal of transplantation |
| Year | 2015 |
| DOI |
10.1103/PhysRevX.5.021009
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