Coupling Spin Defects in a Layered Material to Nanoscale Plasmonic Cavities

Coupling Spin Defects in a Layered Material to Nanoscale Plasmonic Cavities

© 2021 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 1 vom: 02. Jan., Seite e2106046
1. Verfasser: Mendelson, Noah (VerfasserIn)
Weitere Verfasser: Ritika, Ritika, Kianinia, Mehran, Scott, John, Kim, Sejeong, Fröch, Johannes E, Gazzana, Camilla, Westerhausen, Mika, Xiao, Licheng, Mohajerani, Seyed Sepehr, Strauf, Stefan, Toth, Milos, Aharonovich, Igor, Xu, Zai-Quan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article cavity hexagonal boron nitride plasmonics spin defects
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520 |a Spin defects in hexagonal boron nitride, and specifically the negatively charged boron vacancy (VB - ) centers, are emerging candidates for quantum sensing. However, the VB - defects suffer from low quantum efficiency and, as a result, exhibit weak photoluminescence. In this work, a scalable approach is demonstrated to dramatically enhance the VB - emission by coupling to a plasmonic gap cavity. The plasmonic cavity is composed of a flat gold surface and a silver cube, with few-layer hBN flakes positioned in between. Employing these plasmonic cavities, two orders of magnitude are extracted in photoluminescence enhancement associated with a corresponding twofold enhancement in optically detected magnetic resonance contrast. The work will be pivotal to progress in quantum sensing employing 2D materials, and in realization of nanophotonic devices with spin defects in hexagonal boron nitride 
650 4 |a Journal Article 
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650 4 |a hexagonal boron nitride 
650 4 |a plasmonics 
650 4 |a spin defects 
700 1 |a Ritika, Ritika  |e verfasserin  |4 aut 
700 1 |a Kianinia, Mehran  |e verfasserin  |4 aut 
700 1 |a Scott, John  |e verfasserin  |4 aut 
700 1 |a Kim, Sejeong  |e verfasserin  |4 aut 
700 1 |a Fröch, Johannes E  |e verfasserin  |4 aut 
700 1 |a Gazzana, Camilla  |e verfasserin  |4 aut 
700 1 |a Westerhausen, Mika  |e verfasserin  |4 aut 
700 1 |a Xiao, Licheng  |e verfasserin  |4 aut 
700 1 |a Mohajerani, Seyed Sepehr  |e verfasserin  |4 aut 
700 1 |a Strauf, Stefan  |e verfasserin  |4 aut 
700 1 |a Toth, Milos  |e verfasserin  |4 aut 
700 1 |a Aharonovich, Igor  |e verfasserin  |4 aut 
700 1 |a Xu, Zai-Quan  |e verfasserin  |4 aut 
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