Optimized design of metal-coated optical fiber tips with embedded plasmonic slot nano-resonators for maximum field enhancement

Afroditi Petropoulou; Michalis N. Zervas; Christos Riziotis

doi:10.1117/12.2246496

4 November 2016 Optimized design of metal-coated optical fiber tips with embedded plasmonic slot nano-resonators for maximum field enhancement

Afroditi Petropoulou, Michalis N. Zervas, Christos Riziotis

Author Affiliations +

Proceedings Volume 10027, Nanophotonics and Micro/Nano Optics III; 100271G (2016) https://doi.org/10.1117/12.2246496
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

The integration of Plasmonic Nano-Resonators (PNRs) to optical fibers tips with thin metallic claddings forming plasmonic slot nano-resonators (PSNRs) is presented. It is shown that the placement of the PSNR at the cut-off radius of the fiber tip for a specific wavelength where the group velocity tends to zero and light slows down leads to an optimization of field's enhancement. Enhancement factors greater than 3x10⁵ were calculated through Finite Element Method (FEM) simulations by placing the PSNR at the cut-off radius and by changing the geometrical characteristics in order to identify optimal conditions for loss minimization that can find many practical applications in nano-optics and sensing.

Citation Download Citation

Afroditi Petropoulou, Michalis N. Zervas, and Christos Riziotis "Optimized design of metal-coated optical fiber tips with embedded plasmonic slot nano-resonators for maximum field enhancement", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 100271G (4 November 2016); https://doi.org/10.1117/12.2246496

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