Strong Coupling in Two-Phase Metamaterials Fabricated by Sequential Self-Assembly. Wohlwend, J., Haberfehlner, G., & Galinski, H. Advanced Optical Materials, n/a(n/a):2300568, Wiley, July, 2023. ![Strong Coupling in Two-Phase Metamaterials Fabricated by Sequential Self-Assembly [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Abstract Self-assembly processes provide the means to achieve scalable and versatile metamaterials by “bottom-up” fabrication. Despite their enormous potential, especially as a platform for energy materials, self-assembled metamaterials are often limited to single phase systems, and complex multi-phase metamaterials have scarcely been explored. A new approach based on sequential self-assembly (SSA) that enables the formation of a two-phase metamaterial (TPM) composed of a disordered network metamaterial with embedded nanoparticles (NPs) is proposed. Taking advantage of both the high-spatial and high-energy resolution of electron energy loss spectroscopy (EELS), inhomogeneous localization of light in the network is observed, concurrent with dipolar and higher-order localized surface plasmon modes in the nanoparticles. Moreover, it is demonstrated that the coupling strength deviates from the interaction of two classical dipoles when entering the strong coupling regime. The observed energy exchange between two phases in this complex metamaterial, realized solely through self-assembly, implies the possibility to exploit these disordered systems for plasmon-enhanced catalysis.
@Article{https://doi.org/10.1002/adom.202300568,
author = {Wohlwend, Jelena and Haberfehlner, Georg and Galinski, Henning},
journal = {Advanced Optical Materials},
title = {Strong Coupling in Two-Phase Metamaterials Fabricated by Sequential Self-Assembly},
year = {2023},
issn = {2195-1071},
month = jul,
number = {n/a},
pages = {2300568},
volume = {n/a},
abstract = {Abstract Self-assembly processes provide the means to achieve scalable and versatile metamaterials by “bottom-up” fabrication. Despite their enormous potential, especially as a platform for energy materials, self-assembled metamaterials are often limited to single phase systems, and complex multi-phase metamaterials have scarcely been explored. A new approach based on sequential self-assembly (SSA) that enables the formation of a two-phase metamaterial (TPM) composed of a disordered network metamaterial with embedded nanoparticles (NPs) is proposed. Taking advantage of both the high-spatial and high-energy resolution of electron energy loss spectroscopy (EELS), inhomogeneous localization of light in the network is observed, concurrent with dipolar and higher-order localized surface plasmon modes in the nanoparticles. Moreover, it is demonstrated that the coupling strength deviates from the interaction of two classical dipoles when entering the strong coupling regime. The observed energy exchange between two phases in this complex metamaterial, realized solely through self-assembly, implies the possibility to exploit these disordered systems for plasmon-enhanced catalysis.},
doi = {https://doi.org/10.1002/adom.202300568},
eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1002/adom.202300568},
keywords = {chemical dealloying, disordered photonics, EELS, large-scale metamaterials, networks, plasmonics, self-assembly, strong coupling, two-phase systems},
publisher = {Wiley},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adom.202300568},
}
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