Toward Emission Enhancement of Blue Emitters in hBN Using Plasmonic Lattices

Toward Emission Enhancement of Blue Emitters in hBN Using Plasmonic Lattices

ACS Applied Optical Materials

10.1021/acsaom.4c00401

https://doi.org/10.1021/acsaom.4c00401

Karin Yamamura, Shu An, Ivan Zhigulin, Mehran Kianinia, Yiming Wu, Zhaogang Dong, Igor Aharonovich

hexagonal boron nitride, Single photon emitter, van der Waals materials, plasmonic gap cavities, B-centre

18 December 2024

Yamamura, K., An, S., Zhigulin, I., Kianinia, M., Wu, Y., Dong, Z., & Aharonovich, I. (2024). Toward Emission Enhancement of Blue Emitters in hBN Using Plasmonic Lattices. ACS Applied Optical Materials, 3(1), 64–69. https://doi.org/10.1021/acsaom.4c00401

Hexagonal boron nitride (hBN) has been gaining attention as a compelling material platform hosting quantum emitters at room temperature. A particularly important family of emitters in hBN are those with a zero phonon line at 436 nm (termed B-centers) since these can be engineered on demand using electron beam irradiation. In this work, we demonstrate a pathway to integrate these emitters with plasmonic lattices. The blue wavelength necessitates the use of aluminum metal, instead of gold or silver. Consequently, we utilize trench cavity geometry and transfer hBN layers on top of the lattice. We then create deterministically the emitters and measure a 6-fold enhancement in the emission intensity. We conclude by discussing the potential possibilities of plasmonic lattice arrays for scalable enhancement of quantum emitters in layered materials.

Publisher Copyright

This research / project is supported by the Agency for Science, Technology and Research - Advanced Manufacturing and Engineering (AME) Individual Research Grant
Grant Reference no. : A20E5c0093

This research / project is supported by the Agency for Science, Technology and Research - Manufacturing, Trade, and Connectivity (MTC) Individual Research Grant
Grant Reference no. : M21K2c0116

This research / project is supported by the Agency for Science, Technology and Research - Manufacturing, Trade, and Connectivity (MTC) Individual Research Grant
Grant Reference no. : M22K2c0088

This research / project is supported by the National Research Foundation, Singapore - Quantum Engineering Programme 2.0
Grant Reference no. : NRF2021-QEP2-03-P09

This research is supported by core funding from: Agency for Science, Technology and Research DELTA-Q 2.0
Grant Reference no. : C230917001

This research / project is supported by the Agency for Science, Technology and Research - Career Development Award
Grant Reference no. : C210112019

This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Optical Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see 10.1021/acsaom.4c00401.

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