@article{44bd3cd0d08b4691b07ca945f21490f4,
  title   = "Mechanical Evidence of the Orbital Angular Momentum to Energy Ratio of Vortex Beams",
  author  = "Demore, {Christine E. M.} and Zhengyi Yang and Alexander Volovick and Sandy Cochran and MacDonald, {Michael P.} and Spalding, {Gabriel C.}",
  year    = "2012",
  volume  = "108",
  number  = "19",
  pages   = "--",
  journal = "Physical Review Letters",
  issn    = "0031-9007",
}