Detecting Lateral Motion using Light’s Orbital Angular Momentum

  title={Detecting Lateral Motion using Light’s Orbital Angular Momentum},
  author={Neda Cvijetic and Giovanni Milione and Ezra Ip and Ting Wang},
  journal={Scientific Reports},
Interrogating an object with a light beam and analyzing the scattered light can reveal kinematic information about the object, which is vital for applications ranging from autonomous vehicles to gesture recognition and virtual reality. We show that by analyzing the change in the orbital angular momentum (OAM) of a tilted light beam eclipsed by a moving object, lateral motion of the object can be detected in an arbitrary direction using a single light beam and without object image reconstruction… 
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