Enhancing Quantum Emission from Spin Defects in Hexagonal Boron Nitride with a Plasmonic Nanocavity

Xiaohui Xu,Abhishek. B. Solanki,Demid Sychev,Xingyu Gao,Samuel Peana,Alexander S. Baburin,Karthik Pagadala,Zachariah O. Martin,Sarah N. Chowdhury,Yong P. Chen,Takashi Taniguchi,Kenji Watanabe,Ilya A. Rodionov,Alexander Kildishev,Tongcang Li,Pramey Upadhyaya,Alexandra Boltasseva,Vladimir M. Shalaev

2023 Conference on Lasers and Electro-Optics (CLEO)（2023）

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摘要

We report a 250-fold photoluminescence enhancement of ${{\text{V}}_{{{\text{B}}^ - }}}$ spin-defects in hBN by coupling them to nanopatch antennas (NPA). Considering the relative size of the NPAs and laser-spot, an actual enhancement of 1695 times is determined.

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