Nanoparticle positioning via metamaterial plasmonic tweezers

Theodoros D. Bouloumis; Domna G. Kotsifaki; Síle Nic Chormaic

doi:10.1117/12.2659045

8 December 2022 Nanoparticle positioning via metamaterial plasmonic tweezers

Theodoros D. Bouloumis, Domna G. Kotsifaki, Síle Nic Chormaic

Proceedings Volume 12479, Optical Manipulation and Structured Materials Conference (OMC 2022); 124790P (2022) https://doi.org/10.1117/12.2659045
Event: Optics and Photonics International Congress, 2022, Yokohama, Japan

Abstract

We present sequential trapping and positioning of 20 nm polystyrene particles into an array configuration by using metamaterial plasmonic tweezers. The polystyrene nanoparticles suspended into a heavy water solution were trapped on adjacent plasmonic hotspots with a very low excitation power of 3.8 mW, creating a large trap stiffness of about 3.5 fN/nm. This high trapping stiffness kept the particles trapped into the nanocavities’ hotspots achieving almost 80% occupancy of the excited hotspots.

Citation Download Citation

Theodoros D. Bouloumis, Domna G. Kotsifaki, and Síle Nic Chormaic "Nanoparticle positioning via metamaterial plasmonic tweezers", Proc. SPIE 12479, Optical Manipulation and Structured Materials Conference (OMC 2022), 124790P (8 December 2022); https://doi.org/10.1117/12.2659045

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