Super-Resonant Intracavity Coherent Absorption

  title={Super-Resonant Intracavity Coherent Absorption},
  author={Pietro Malara and Carlo Edoardo Campanella and Antonio Giorgini and Saverio Avino and Paolo De Natale and Gianluca Gagliardi},
  journal={Scientific Reports},
The capability of optical resonators to extend the effective radiation-matter interaction length originates from a multipass effect, hence is intrinsically limited by the resonator’s quality factor. Here, we show that this constraint can be overcome by combining the concepts of resonant interaction and coherent perfect absorption (CPA). We demonstrate and investigate super-resonant coherent absorption in a coupled Fabry-Perot (FP)/ring cavity structure. At the FP resonant wavelengths, the… 
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