Plasmonic‐Strain Engineering of Quantum Emitters in Hexagonal Boron Nitride
Abstract In the realm of quantum information and sensing, there has been substantial interest in the single‐photon emission (SPE) associated with defects in hexagonal boron nitride (hBN). With the goal of producing deterministic emission centers, in this work, a platform is presented for engineering...
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2025-07-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202500071 |
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| Summary: | Abstract In the realm of quantum information and sensing, there has been substantial interest in the single‐photon emission (SPE) associated with defects in hexagonal boron nitride (hBN). With the goal of producing deterministic emission centers, in this work, a platform is presented for engineering emission in hBN integrated with gold (Au) truncated nanocone structures. These findings highlight that, the emission in the hBN overlaps with the emission due to the truncated gold nanocones. Furthermore, the quantum characteristics of this emission are measured and found that while this system demonstrates support for SPE, the origin of this emission remains ambiguous. Specifically, it is unclear whether the emission arises from defects generated by the induced strain or from alternative defect mechanisms. This uncertainty stems from the fluorescence properties inherent to gold, complicating the definitive attribution of the quantum emission source. To provide a rigorous theoretical foundation, the effects of strain are elucidated via the Kirchhoff–Love theory. Additionally, the enhancements observed due to plasmonic effects are comprehensively explained through the resolution of Maxwell's equations. This study will be useful for the development of deterministic and tunable single photonic sources in 2D materials and their integration with plasmonic platforms. |
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| ISSN: | 2196-7350 |