Ratchet effect in frequency-modulated waveguide-coupled emitter arrays

  title={Ratchet effect in frequency-modulated waveguide-coupled emitter arrays},
  author={Alexander N. Poddubny and Leonid E. Golub},
  journal={Physical Review B},
We study theoretically the spatial distribution of the polarizations in the array of resonant electromagnetic dipole emitters coupled to a one-dimensional waveguide. The ratchet effect manifests itself in the spatial asymmetry of the distribution of the emitter occupations along the array under symmetrical pumping from both sides. The occupation asymmetry is driven by the periodic modulation in time of the emitter resonance frequencies. We find numerically and analytically the optimal… Expand

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