Optical trapping and manipulation of nanoparticles using a meta plasmonic structure

Rehab Kotb, Mahmoud El Maklizi, Yehea Ismail and Mohamed A Swillam
In this paper, a novel structure of nano optical tweezers using triple-slit plasmonic grating structure is introduced and analyzed. The tweezers have deep potential wells that can trap sub-10 nm dielectric particle stably and efficiently. The resultant 50 KT potential well provides tight 2D trapping to the particle. The plasmonic device allows for steering the particle by simply changing the angle of the incident plane. This simple control allows efficient manipulation of the trapped particle over wide range of angles.

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