We design an on-chip slotted photonic-crystal nanobeam-cavity with ultra-high Q/V to enhance cavity optical trapping characteristic. For stable trapping a 10nm-radius polystyrene-nanoparticle, ultra-low threshold power of 0.165µW and ultra-high trapping force of 1.09×104pN/mW can be achieved.

© 2017 Optical Society of America

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