Dokument: Evolution of Collective, Radiative Plasmon Coupling in Confined, Soft Colloidal Films
| Titel: | Evolution of Collective, Radiative Plasmon Coupling in Confined, Soft Colloidal Films | |||||||
| URL für Lesezeichen: | https://docserv.uni-duesseldorf.de/servlets/DocumentServlet?id=72017 | |||||||
| URN (NBN): | urn:nbn:de:hbz:061-20260123-135958-2 | |||||||
| Kollektion: | Publikationen | |||||||
| Sprache: | Englisch | |||||||
| Dokumententyp: | Wissenschaftliche Texte » Artikel, Aufsatz | |||||||
| Medientyp: | Text | |||||||
| Autoren: | Feller, Déborah [Autor] Kippenberger, Julian [Autor] Washeim, Christian [Autor] Meissner, Jan A. [Autor] Meisner, Jan [Autor] Karg, Matthias [Autor] Wang, Jiakai [Autor] Mulvaney, Paul [Autor] | |||||||
| Dateien: |
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| Stichwörter: | plasmonic-diffractive coupling , self-assembly , core-shell microgels , fluid interface , in situ spectroscopy | |||||||
| Beschreibung: | Plasmon resonance coupling is a strongly distance-dependent phenomenon that also critically depends on the spatial arrangement of its plasmonic constituents, for example, plasmonic nanoparticles in periodic or random assemblies. Here, we report electromagnetic coupling in ordered monolayers of gold nanoparticles. The interparticle distances range from two to almost six times the particle diameter. This is achieved by continuously monitoring
the optical response of a soft colloidal monolayer film that is confined at the air/water interface and compressed through the barriers of a Langmuir trough. The colloidal building blocks contain monodisperse, spherical gold nanoparticles that are homogeneously encapsulated in soft, deformable microgel shells. The soft shell enables continuous tuning of the interparticle distance. This work directly compares the optical response measured in situ at the fluid interface to the response of monolayers that are transferred to glass substrates. Supported by COMSOL simulations and calculations using the coupled dipole approximation this work observes plasmonic surface lattice resonances for large spacings at the fluid interface. Reducing the interparticle distance leads to increased damping and broadening of the coupled resonances. These results demonstrate the feasibility of engineering 2D plasmonic structures with a wide range of optical properties via mechanical manipulation of soft colloidal films. | |||||||
| Rechtliche Vermerke: | Originalveröffentlichung:
Feller, D., Wang, J., Kippenberger, J., Washeim, C., Meissner, J. A., Meisner, J., Mulvaney, P., & Karg, M. (2025). Evolution of Collective, Radiative Plasmon Coupling in Confined, Soft Colloidal Films. Advanced Optical Materials, 13(34), Article e01657. https://doi.org/10.1002/adom.202501657 | |||||||
| Lizenz: |  Dieses Werk ist lizenziert unter einer Creative Commons Namensnennung 4.0 International Lizenz | |||||||
| Fachbereich / Einrichtung: | Mathematisch- Naturwissenschaftliche Fakultät | |||||||
| Dokument erstellt am: | 23.01.2026 | |||||||
| Dateien geändert am: | 23.01.2026 |
