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Robust diamond-embedded microwave antenna for optimizing quantum sensing using nitrogen-vacancy center ensembles

MetadataDetails
Publication Date2023-12-25
JournalApplied Physics Letters
AuthorsYuhang Guo, Jiaxin Zhao, Changfeng Weng, Shengran Lin, Yuanjie Yang
InstitutionsUniversity of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
Citations5

The nitrogen-vacancy (NV) color center in diamond has emerged as a promising candidate for quantum sensing. In this study, we propose a diamond-embedded metal antenna for magnetic detection utilizing NV center ensembles. Our approach involved employing nanofabrication and microwave plasma chemical vapor deposition techniques to fabricate the metal antenna and diamond epilayer. By directly embedding the antenna into the diamond, we effectively minimize external environmental interference, leading to improved device stability and reusability. Moreover, this integration enhances the device’s compactness, making it highly suitable for on-chip quantum sensing applications. The innovative antenna design holds great potential for the development of future integrated quantum sensing devices based on NV centers in diamond.

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