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  4. Best Poster Award for Yunfeng Li

Best Poster Award for Yunfeng Li

04/08/2025

Yunfeng Li from the Nanoengineering Group received the Best Poster Award at this year’s International Conference on Optical MEMS and Nanophotonics (OMN 2025), held in Chiang Mai, Thailand.

 

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Best Poster Award for Yunfeng Li, Chiang Mai, Thailand.

The conference paper, titled “Bound States in the Continuum in Hybrid Plasmonic-Photonic Architectures”, was co-authored by Anup Shrivastava and Jost Adam from the University of Kassel, Germany, and by Eneko Lopez and Andreas Seifert from the Nanoengineering Group at nanoGUNE. The paper will be published on the IEEE Xplore digital platform.

The research focuses on plasmonic metasurfaces that support bound states in the continuum (BICs) and offer high sensitivity for optical biosensing. A dual-ribbon metal-insulator-metal metasurface was designed using electromagnetic simulations, fabricated by electron-beam lithography. It hosts robust quasi-BIC (qBIC) resonances at normal incidence without angular tuning. The fabricated device is extremely robust against fabrication tolerances, which is highly critical for plasmonic qBICs. The achieved sensitivity is larger than 400 nm per refractive index unit, and integrated into a microfluidic chip, this metasurface detects anti-insulin antibodies down to 1.9 nM. This alignment-free, robust platform provides a practical route toward high-performance, label-free biosensing.

Tags
Plasmonics
Nanophotonics
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