@misc{chen2017phase,
  title={Phase and dispersion engineering of metalenses: broadband achromatic focusing and imaging in the visible},
  author={Wei Ting Chen and Alexander Y. Zhu and Vyshakh Sanjeev and Mohammadreza Khorasaninejad and Zhujun Shi and Eric Lee and Federico Capasso},
  year={2017},
  eprint={1711.09343},
  archivePrefix={arXiv},
  primaryClass={physics.optics},
  url={https://arxiv.org/abs/1711.09343}
}