Sharing a Common Origin Between the Rotational and Linear Doppler Effects

@article{Fang2017SharingAC,
  title={Sharing a Common Origin Between the Rotational and Linear Doppler Effects},
  author={Liang Fang and Miles J. Padgett and Jian Wang},
  journal={Laser \& Photonics Reviews},
  year={2017},
  volume={11}
}
The well‐known linear Doppler effect arises from the linear motion between source and observer, while the less well‐known rotational Doppler effect arises from the rotational motion. Here, we present both theories and experiments illustrating the relationship between the rotational and linear Doppler effects. A spiral phaseplate is used to generate a light beam carrying orbital angular momentum and the frequency shift is measured arising from its rotational and/or linear motion. By considering… 
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