| Autor: |
Tuniz, Alessandro, Bickerton, Oliver, Diaz, Fernando J., Käsebier, Thomas, Kley, Ernst-Bernhard, Kroker, Stefanie, Palomba, Stefano, de Sterke, C. Martijn |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Nat. Commun. 11, 2413 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1038/s41467-020-16190-z |
| Popis: |
We introduce a modular approach for efficiently interfacing photonic integrated circuits with deep-sub-wavelength hybrid plasmonic functionality. We demonstrate that an off-the-shelf silicon-on-insulator waveguide can be post-processed into an integrated hybrid plasmonic circuit by evaporating a silica and gold nanolayer. The circuit consists of a plasmonic rotator and a nanofocusser module, which together result in nano-scale, nonlinear wavelength conversion. We experimentally characterize each module, and demonstrate an intensity enhancement of $>200$ in a calculated mode area of $50\,{\rm nm}^2$ at $\lambda = 1320\,{\rm nm}$ using second harmonic generation. This work opens the door to customized plasmonic functionalities on industry-standard waveguides, bridging conventional integrated photonic circuits with hybrid plasmonic devices. This approach promises convenient access to nanometre-scale quantum information processing, nonlinear plasmonics, and single-molecule sensing. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
