@misc{indiciaed38fd3630559,
  title = {Laser Beam Expander with Adjustable Collimation},
  author = {Ramos-Izquierdo, Luis A. and Sun, Xiaoli},
  year = {2018},
  url = {https://ntrs.nasa.gov/citations/20180008160},
  note = {Source identifier: 20180008160}
}