Experimental demonstration of coherent perfect absorption in a silicon photonic racetrack resonator Journal Articles uri icon

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  • We present the first experimental demonstration of coherent perfect absorption (CPA) in an integrated device using a silicon racetrack resonator at telecommunication wavelengths. Absorption in the racetrack is achieved by Si+-ion-implantation, allowing for phase controllable amplitude modulation at the resonant wavelength. The device is measured to have an extinction of 24.5 dB and a quality-factor exceeding 3000. Our results will enable integrated CPA devices for data modulation and detection.


  • Rothenberg, Jacob M
  • Chen, Christine P
  • Ackert, Jason J
  • Dadap, Jerry I
  • Knights, Andrew
  • Bergman, Keren
  • Osgood, Richard M
  • Grote, Richard R

publication date

  • June 1, 2016