ArticleNature communications2022
Extremely confined gap plasmon modes: when nonlocality matters.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Large-Area Atomically Flat Monocrystalline Gold Flakes: Recent Advances, Applications, and Future Potential.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
- Overcoming Computational Bottlenecks in Quantum Hydrodynamics: A Volume-Based Integral Formalism for Spherical Nanoparticles.Nanophotonics (Berlin, Germany) · 2026Article
- Toward Plasmonic Neuronal Architectures at the Nanometer Scale.Nanophotonics (Berlin, Germany) · 2026Article
- Plasmonic-Quantum and Emitter's Finite-Size Effects in Plasmon-Emitter Coupling: A QHT-DFT Hybrid Approach.Nanophotonics (Berlin, Germany) · 2026Article
- Fundamental optical phenomena of strongly anisotropic polaritons at the nanoscale.Nature nanotechnology · 2026Review
- Nonlocal electrodynamics of two-dimensional anisotropic magnetoplasmons.Nanophotonics (Berlin, Germany) · 2025Article
- AI‑driven photonic noses: from conventional sensors to cloud‑to-edge intelligent microsystems.Microsystems & nanoengineering · 2025Review
- Near-field refractometry of van der Waals crystals.Nanophotonics (Berlin, Germany) · 2025Article
- Broadband measurement of Feibelman's quantum surface response functions.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Nanogap-Engineered Core-Shell-Like Nanostructures for Comprehensive SERS Analysis.ACS applied materials & interfaces · 2025Article
- Modulation of surface response in a single plasmonic nanoresonator.Science advances · 2024Article
- Strong angular and spectral narrowing of electroluminescence in an integrated Tamm-plasmon-driven halide perovskite LED.Nature communications · 2024Article
- Ultrasmall and tunable TeraHertz surface plasmon cavities at the ultimate plasmonic limit.Nature communications · 2023Article
- Electrically driven nanogap antennas and quantum tunneling regime.Nanophotonics (Berlin, Germany) · 2023Review
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Historically, the field of plasmonics has been relying on the framework of classical electrodynamics, with the local-response approximation of material response being applied even when dealing with nanoscale metallic structures. However, when the confinement of electromagnetic radiation approaches atomic scales, mesoscopic effects are anticipated to become observable, e.g., those associated with the nonlocal electrodynamic surface response of the electron gas. Here, we investigate nonlocal effects in propagating gap surface plasmon modes in ultrathin metal-dielectric-metal planar waveguides, exploiting monocrystalline gold flakes separated by atomic-layer-deposited aluminum oxide. We use scanning near-field optical microscopy to directly access the near-field of such confined gap plasmon modes and measure their dispersion relation via their complex-valued propagation constants. We compare our experimental findings with the predictions of the generalized nonlocal optical response theory to unveil signatures of nonlocal damping, which becomes appreciable for few-nanometer-sized dielectric gaps.
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