Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN

[2506.14517] Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Physics > Optics arXiv:2506.14517 (physics) [Submitted on 17 Jun 2025 ( v1 ), last revised 31 Jan 2026 (this version, v2)] Title: Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN Authors: Sinan Genc , Oguzhan Yucel , Furkan Aglarci , Carlos Rodriguez-Fernandez , Alpay Yilmaz , Humeyra Caglayan , Serkan Ates , Alpan Bek View a PDF of the paper titled Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN, by Sinan Genc and 6 other authors View PDF HTML (experimental) Abstract: Defect-based quantum emitters in hexagonal boron nitride (hBN) are promising building blocks for scalable quantum photonics due to their stable single-photon emission at room temperature. However, enhancing their emission intensity and controlling the decay dynamics remain significant challenges. This study demonstrates a low-cost, scalable fabrication approach to integrate plasmonic nanocavities with defect-based quantum emitters in hBN nanoflakes. Using the thermal dewetting process, we realize two distinct configurations: stochastic Ag nanoparticles (AgNPs) on hBN flakes and hybrid plasmonic nanocavities formed by AgNPs on top of hBN flakes supported on gold/silicon dioxide (Au/SiO2) substrates. While AgNPs on bare hBN yield up to a two-fold photoluminescence (PL) enhancement with reduced emitter lifetimes, the hybrid nanocavity architecture provides a dramatic, up to 100-fold PL enhancement and improved uniformity across multiple. emitters, all without requiring deterministic positioning. Finite-difference time-domain (FDTD) simulations and time-resolved PL measurements confirm size-dependent control over decay dynamics and cavity-emitter interactions. Our versatile solution overcomes key quantum photonic device development challenges, including material integration, emission intensity optimization, and spectral multiplexity. Future work will explore potential applications in integrated photonic circuits hosting on-chip quantum systems and hBN-based label-free single-molecule detection through such quantum nanoantennas. Subjects: Optics (physics.optics) ; Applied Physics (physics.app-ph); Quantum Physics (quant-ph) Cite as: arXiv:2506.14517 [physics.optics] (or arXiv:2506.14517v2 [physics.optics] for this version) https://doi.org/10.48550/arXiv.2506.14517 Focus to learn more arXiv-issued DOI via DataCite Journal reference: ACS Photonics 2026 Related DOI : https://doi.org/10.1021/acsphotonics.5c02063 Focus to learn more DOI(s) linking to related resources Submission history From: Sinan Genc [ view email ] [v1] Tue, 17 Jun 2025 13:46:15 UTC (2,095 KB) [v2] Sat, 31 Jan 2026 14:55:14 UTC (2,655 KB) Full-text links: Access Paper: View a PDF of the paper titled Disorder-Engineered Hybrid Plasmonic Cavities for Emission Control of Defects in hBN, by Sinan Genc and 6 other authors View PDF HTML (experimental) TeX Source view license Current browse context: physics.optics < prev | next > new | recent | 2025-06 Change to browse by: physics physics.app-ph quant-ph References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... 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