Particle trapping using plasmonic arrays

German Suslin; Viet Giang Truong; Síle Nic Chormaic

doi:10.1117/12.3012251

10 June 2024 Particle trapping using plasmonic arrays

German Suslin, Viet Giang Truong, Síle Nic Chormaic

Proceedings Volume 12991, Nanophotonics X; 1299106 (2024) https://doi.org/10.1117/12.3012251
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Optical trapping and sensing platforms based on plasmonics were developed due to the desire to both trap and manipulate ever smaller particles using noninvasive optical techniques. Through careful engineering of the plasmonic structures, a Fano resonance can yield a surprisingly large improvement to the trapping efficiency for nanoparticles. Using a split ring array, we have demonstrated trapping of particles as small as 10 nm and have exploited the SIBA effect to improve the trap stiffness for gold nanoparticles. We have extended the technique to sense and determine the phase of E-coli bacteria and have explored thermal effects which can contribute to the trapping processes. Here, we discuss characterization of the devices themselves, to engineer them for specific applications such as enhanced photoluminescence from nano-emitters, particularly nanographenes.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

German Suslin, Viet Giang Truong, and Síle Nic Chormaic "Particle trapping using plasmonic arrays", Proc. SPIE 12991, Nanophotonics X, 1299106 (10 June 2024); https://doi.org/10.1117/12.3012251

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