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Charnia-like broadband plasmonic nano-antenna

2013; Taylor & Francis; Volume: 60; Issue: 10 Linguagem: Inglês

10.1080/09500340.2013.813089

1362-3044

Ziyuan Li, Haroldo T. Hattori, Evgeny G. Mironov,

Molecular Communication and Nanonetworks

Abstract Charnia was a pre-Cambrian life-form that exhibited a fractal structure to improve the extraction of nutrients from the pre-historic seas. Inspired by its fractal structure, this paper studies the potential application of these self-similarity fractal structures to create a plasmonic nano-antenna that can operate over a large linewidth. These devices are studied both theoretically and experimentally. It is shown that these nano-antennas can produce electric field enhancements above 8 over 200 nm range and surface enhanced Raman scattering (SERS) enhancements higher than 105. Keywords: integrated opticssurface plasmonssurface enhanced Raman scatteringplasmonic nano-antenna Acknowledgements The authors acknowledge financial support from the Australian Research Council (ARC) and the Research Publication Fellowship (UNSW Canberra). The Australian National Fabrication Facility, ACT node is gratefully acknowledged for providing access to the fabrication facilities used in this study.