Self-organized metasurfaces enabling plasmon hybridization

M. C. Giordano; M. Barelli; A. Mazzanti; G. Della Valle; F. Buatier de Mongeot

doi:10.1117/12.2529154

9 September 2019 Self-organized metasurfaces enabling plasmon hybridization

M. C. Giordano, M. Barelli, A. Mazzanti, G. Della Valle, F. Buatier de Mongeot

Proceedings Volume 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII; 110821K (2019) https://doi.org/10.1117/12.2529154
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

Here the engineering of anisotropic plasmonic metasurfaces in the form of nanostripes or nanostripe dimers is demonstrated by a novel self-organization technique. Subwavelength quasi-1D glass templates are fabricated over large (cm2) area by ion beam induced wrinkling, enabling the maskless confinement of out-of-plane tilted gold nanostripe arrays supporting localized plasmon resonances easily tunable from the Visible to the Near-Infrared spectrum. A multi-step variant of the method allows to achieve plasmon hybridization in Au-silica-Au nanostrip dimer arrays with excitation of plasmonic electric dipole and magnetic dipole mode featuring strong subradiant near-field enhancement. The selforganized method enables to tune the hybridized plasmonic mode in the Visible and Near-Infrared spectrum opening the possibility to exploit these templates in highly sensitive biosensing and/or nonlinear optical spectroscopies.

Citation Download Citation

M. C. Giordano, M. Barelli, A. Mazzanti, G. Della Valle, and F. Buatier de Mongeot "Self-organized metasurfaces enabling plasmon hybridization", Proc. SPIE 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, 110821K (9 September 2019); https://doi.org/10.1117/12.2529154

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