Photoluminescence Decomposition Analysis: A Technique to Characterize N-V Creation in Diamond
Name
PhysRevApplied.12.044003.pdf
Description
Published version
Size
2.21 MB
Format
Adobe PDF
Checksum (MD5)
9973a7dbdb6e5822758ff339b8ccebaf
Author(s)
Alsid, Scott T
Barry, John F.
Pham, Linh M
Schloss, Jennifer May
O'Keeffe, Michael F.
Cappellaro, Paola
Braje, Danielle A.
Date Issued
October 1, 2019
Journal
Physical review applied
Publisher
American Physical Society (APS)
Citation
Alsid, Scott T. et al. "Photoluminescence Decomposition Analysis: A Technique to Characterize N-V Creation in Diamond.' Physical review applied 12 (2019): 044033-1 to 044033-20 © 2019 The Author(s)
Version
Final published version
Abstract
Treatment of laboratory-grown diamond by electron irradiation and annealing has enabled quantum sensors based on negatively charged nitrogen-vacancy (N-V-) centers to demonstrate record sensitivities. Here we investigate the irradiation and annealing process applied to 28 diamond samples using an ambient-temperature, all-optical approach. As the presence of the neutrally charged nitrogen-vacancy (N-V0) center is deleterious to sensor performance, this photoluminescence decomposition analysis is first used to determine the concentration ratio of N-V- to N-V0 in diamond samples from the measured photoluminescence spectrum. The analysis hinges on (i) isolating each N-V charge state's emission spectrum and (ii) measuring the N-V- to N-V0 emission ratio, which is found to be 2.5±0.5 under low-intensity 532-nm illumination. Using the photoluminescence-decomposition-analysis method, we measure the effects of irradiation and annealing on conversion of substitutional nitrogen to N-V centers. Combining these measurements with a phenomenological model for diamond irradiation and annealing, we extract an estimated monovacancy creation rate of 0.52±0.26cm-1 for 1-MeV electron irradiation and an estimated monovacancy diffusion coefficient of 1.8 nm2/s at 850 C. Finally, we find that irradiation doses of 1018e-/cm2 or more deteriorate the N-V- decoherence time T2, whereas T1 is unaffected up to the the maximum investigated dose of 5×1018e-/cm2.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Physics
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Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/physrevapplied.12.044003
