Observation of an optical spring with a beam splitter.

@article{Cripe2018ObservationOA,
  title={Observation of an optical spring with a beam splitter.},
  author={Jonathan Cripe and Baylee Danz and Benjamin Lane and Mary Catherine Lorio and Julia Falcone and Garrett D. Cole and Thomas R. Corbitt},
  journal={Optics letters},
  year={2018},
  volume={43 9},
  pages={
          2193-2196
        }
}
We present the experimental observation of an optical spring without the use of an optical cavity. The optical spring is produced by interference at a beam splitter and, in principle, does not have the damping force associated with optical springs created in detuned cavities. The experiment consists of a Michelson-Sagnac interferometer (with no recycling cavities) with a partially reflective GaAs microresonator as the beam splitter that produces the optical spring. Our experimental measurements… 
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