Selectively exciting quasi-normal modes in open disordered systems

  title={Selectively exciting quasi-normal modes in open disordered systems},
  author={Matthieu Davy and Azriel Z. Genack},
  journal={Nature Communications},
Transmission through disordered samples can be controlled by illuminating a sample with waveforms corresponding to the eigenchannels of the transmission matrix (TM). But can the TM be exploited to selectively excite quasi-normal modes and so control the spatial profile and dwell time inside the medium? We show in microwave and numerical studies that spectra of the TM can be analyzed into modal transmission matrices of rank unity. This makes it possible to enhance the energy within a sample by a… 

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