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Lead-related quantum emitters in diamond

Author(s)
Ciccarino, Christopher J.; Flick, Johannes; Sundararaman, Ravishankar; Malladi, Girish; Walsh, Michael; Bakhru, Hassaram; Narang, Prineha; Trusheim, Matthew E; Wan, Noel Heng Loon; Chen, Kevin C.; Bersin, Eric Alexander; Lienhard, Benjamin; Englund, Dirk R.; ... Show more Show less
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Abstract
We report on quantum emission from Pb-related color centers in diamond following ion implantation and high-temperature vacuum annealing. First-principles calculations predict a negatively charged Pb-vacancy (PbV) center in a split-vacancy configuration, with a zero-phonon transition around 2.4 eV. Cryogenic photoluminescence measurements performed on emitters in nanofabricated pillars reveal several transitions, including a prominent doublet near 520 nm. The splitting of this doublet, 5.7 THz, exceeds that reported for other group-IV centers. These observations are consistent with the PbV center, which is expected to have a combination of narrow optical transitions and stable spin states, making it a promising system for quantum network nodes.
Date issued
2019-02
URI
http://hdl.handle.net/1721.1/121092
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Physical Review B
Publisher
American Physical Society
Citation
Trusheim, Matthew E., et al. “Lead-Related Quantum Emitters in Diamond.” Physical Review B, vol. 99, no. 7, Feb. 2019. © 2019 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969

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