Generation of coherent phonons via a cavity enhanced photonic lambda scheme

  title={Generation of coherent phonons via a cavity enhanced photonic lambda scheme},
  author={Jeremy Bourhill and Nat{\'a}lia C. Carvalho and Maxim Goryachev and Serge Galliou and Michael E. Tobar},
  journal={Applied Physics Letters},
We demonstrate the generation of coherent phonons in a quartz bulk acoustic wave (BAW) resonator through the photoelastic properties of the crystal, via coupling to a microwave cavity enhanced by a photonic lambda scheme. This is achieved by imbedding a single crystal BAW resonator between the post and the adjacent wall of a microwave re-entrant cavity resonator. This 3D photonic lumped LC resonator at the same time acts as the electrode of a BAW phonon resonator and allows the direct readout… 
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