30-Fold Increase in Atom-Cavity Coupling Using a Parabolic Ring Cavity

  title={30-Fold Increase in Atom-Cavity Coupling Using a Parabolic Ring Cavity},
  author={Kevin C. Cox and David H. Meyer and Nathan Schine and Fredrik K. Fatemi and Paul D. Kunz},
Optical cavities are one of the best ways to increase atom-light coupling and will be a key ingredient for future quantum technologies that rely on light-matter interfaces. We demonstrate that traveling-wave “ring” cavities can achieve a greatly reduced mode waist w, leading to larger atom-cavity coupling strength, relative to conventional standing-wave cavities for given mirror separation and stability. Additionally, ring cavities can achieve arbitrary transverse-mode spacing simultaneously… 

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