On-Chip Slotted Photonic Crystal Nanobeam Cavity for Single Nanoparticle Trapping and Detection

摘要

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 0.165 μW and ultra-high trapping force of 1.09 × 10⁴ pN/mW can be achieved.