Direct measurements of the extraordinary optical momentum and transverse spin-dependent force using a nano-cantilever

  title={Direct measurements of the extraordinary optical momentum and transverse spin-dependent force using a nano-cantilever},
  author={Massimo Antognozzi and Charlotte R Bermingham and Robert L. Harniman and Stephen H. Simpson and Jm Senior and R. Hayward and Heinrich Hoerber and Mark R. Dennis and Aleksandr Bekshaev and Konstantin Y. Bliokh and Franco Nori},
  journal={Nature Physics},
An unexpected optical momentum and force perpendicular to the wavevector are measured using a nano-cantilever in an evanescent optical field, confirming a 75-year-old prediction. 

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