• Corpus ID: 208527326

Tunable phase-gradient-based optical tweezers

@article{Tang2019TunablePO,
  title={Tunable phase-gradient-based optical tweezers},
  author={Xionggui Tang and Fan Nan and Zijie Yan},
  journal={arXiv: Optics},
  year={2019}
}
Conventional optical tweezers are generated by the intensity gradient of highly focused laser beams, but the requirement of strong intensity gradient limits the tunability of optical traps. Here we show a new type of optical tweezers with tunable potential wells by manipulating the phase gradient of light. Using a new method to calculate holograms, we can design desirable phase profiles and intensity distributions of optical patterns. Optical force arising from the phase gradient creates… 

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