@inproceedings{wan2016grating,
  title={Grating Design for 3-D Interconnections of Waveguides in Overlaid Chips Using the RCWA-EIS Method},
  author={Wan, Congshan and Gaylord, Thomas K and Bakir, Muhannad S},
  booktitle={Laser Science},
  pages={JW4A--127},
  year={2016},
  organization={Optical Society of America}
}