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Proceedings Paper

Nano-ring arrays for sub-micron particle trapping
Author(s): Xue Han; Viet Giang Truong; Síle Nic Chormaic
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Paper Abstract

Plasmonic tweezers based on nano-ring arrays on gold thin film are demonstrated. A cylindrical surface plasmon resonance is generated in the aperture of a nano-ring and a transmission peak results. When nano-slits are included to connect the nano-rings, the transmission peak becomes narrower. When the size of the aperture of the nano-ring is reduced, this peak is red-shifted. Both 0.5 μm and 1 μm polystyrene particles are trapped successfully by nano-ring arrays. A self-induced back-action effect is observed when a red-shifted laser beam is used. With multiple trapping sites provided by the nano-ring array, this type of plasmonic tweezers has huge potential to be integrated in lab-on-a-chip systems for life sciences research.

Paper Details

Date Published: 18 April 2017
PDF: 3 pages
Proc. SPIE 10252, Optical Manipulation Conference, 102520R (18 April 2017); doi: 10.1117/12.2270524
Show Author Affiliations
Xue Han, Okinawa Institute of Science and Technology Graduate Univ. (Japan)
Viet Giang Truong, Okinawa Institute of Science and Technology Graduate Univ. (Japan)
Síle Nic Chormaic, Okinawa Institute of Science and Technology Graduate Univ. (Japan)


Published in SPIE Proceedings Vol. 10252:
Optical Manipulation Conference
Takashige Omatsu, Editor(s)

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