Table 1 Comparison of different near-field optical trapping platforms
From: Large-scale optical trapping using a gradient-thickness protected microbottle resonator
Platform | Trapping region (μm) | Particle interacting field | Localized trapping | Refs. |
|---|---|---|---|---|
WGM resonator | 0.5 - 3.5 | Evanescent wave | No | |
Waveguide | 0.35 | Evanescent wave | Yes | |
Slot waveguide | 0.1 | Field strength antinode | No | |
Photonic crystal resonator | 0.2 | Field strength antinode | Yes | |
Surface plasmon polaritons | 80 | Evanescent wave | No | |
Photonic nanojet array | 28 | Field strength antinode | Yes | |
Metasurface | 30 | Field strength antinode | Yes | |
GTP WGM resonator | 195 | Field strength antinode, enhanced robustness | Yes | This work |
