@misc{indiciaec656d5108453,
  title = {Boundaryless finite-difference method for three-dimensional beam propagation.},
  author = {Manuel Guizar-Sicairos and Julio C Gutiérrez-Vega},
  year = {2006},
  doi = {10.1364/josaa.23.000866},
  url = {https://pubmed.ncbi.nlm.nih.gov/16604768/},
  note = {Source identifier: 16604768}
}