Journal article
An integrated widefield probe for practical diamond nitrogen-vacancy microscopy
GJ Abrahams, SC Scholten, AJ Healey, IO Robertson, N Dontschuk, SQ Lim, BC Johnson, DA Simpson, LCL Hollenberg, JP Tetienne
Applied Physics Letters | AIP Publishing | Published : 2021
DOI: 10.1063/5.0073320
Abstract
The widefield diamond nitrogen-vacancy (NV) microscope is a powerful instrument for imaging magnetic fields. However, a key limitation impeding its wider adoption is its complex operation, in part due to the difficulty of precisely interfacing the sensor and sample to achieve optimum spatial resolution. Here, we demonstrate a solution to this interfacing problem that is practical and reliably minimizes NV-sample standoff. We built a compact widefield NV microscope, which incorporates an integrated widefield diamond probe with full position and angular control, and developed a systematic alignment procedure based on optical interference fringes. Using this platform, we imaged an ultrathin (1 ..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
The authors thank V. Jacques for providing the CoFeB sample, which was originally grown and patterned by M. Hayashi, K. Garcia, and J.-P. Adam. This work was supported by the Australian Research Council (ARC) through Grant Nos. CE170100012, DP190101506, and FT200100073. They acknowledge the AFAiiR node of the NCRIS Heavy Ion Capability for access to ion-implantation facilities. S.C.S. gratefully acknowledges the support of an Ernst and Grace Matthaei scholarship. A.J.H. is supported by an Australian Government Research Training Program Scholarship.