@article{bian2015ultralong,
  title={Ultralong focal length microlens array fabricated based on SU-8 photoresist},
  author={Bian, Rui and Xiong, Ying and Chen, Xiangyu and Xiong, Penghui and Hou, Shuangyue and Chen, Shan and Zhang, Xiaobo and Liu, Gang and Tian, Yangchao},
  journal={Applied Optics},
  volume={54},
  number={16},
  pages={5088--5093},
  year={2015},
  publisher={Optica Publishing Group}
}