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Strong coupling between an inverse bowtie Nano-Antenna and a J-aggregate
Adam Weissman1, Maxim Sukharev2, Adi Salomon1
1Department of Chemistry, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel.
Journal of Colloid and Interface Science
|December 20, 2021
Summary
We achieved strong coupling between J-aggregates and plasmonic nanostructures, observing distinct hybrid modes. This interaction
Area of Science:
- Plasmonics and Nanophotonics
- Quantum Optics
- Materials Science
Background:
- Strong light-matter interactions are crucial for advanced optical devices.
- Plasmonic nanostructures offer unique electromagnetic field confinement.
- J-aggregates exhibit strong optical absorption and excitonic properties.
Purpose of the Study:
- To investigate strong coupling between J-aggregates and inverse bowtie plasmonic structures.
- To explore the influence of J-aggregate orientation and position on coupling.
- To analyze the formation of hybrid modes and their spectral characteristics.
Main Methods:
- Fabrication of inverse bowtie plasmonic structures.
- Integration of single or few J-aggregates at controlled axial distances.
- Optical spectroscopy to observe hybrid modes and measure Rabi splitting.
- Numerical simulations for theoretical validation.
Main Results:
- Demonstrated strong coupling between J-aggregates and plasmonic structures.
- Observed three distinct hybrid modes indicative of strong interaction.
- Achieved a maximum Rabi splitting of 290 meV.
- Found that Rabi splitting is highly dependent on J-aggregate orientation.
Conclusions:
- The study confirms strong coupling is achievable with specific plasmonic architectures.
- J-aggregate orientation is a critical parameter for tuning light-matter interactions.
- Results are consistent across different plasmonic geometries (bowtie and triangular holes).
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