• Corpus ID: 118746724

Dissipation-Induced Super Scattering and Lasing PT-Spaser

  title={Dissipation-Induced Super Scattering and Lasing PT-Spaser},
  author={Simin Feng},
  journal={arXiv: Optics},
  • S. Feng
  • Published 28 February 2015
  • Physics
  • arXiv: Optics
Giant transmission and reflection of a finite bandwidth are shown to occur at the same wavelength when the electromagnetic wave is incident on a periodic array of PT-symmetric dimers embedded in a metallic film. Remarkably, we found that this phenomenon vanishes if the metallic substrate is lossless while keeping other parameters unchanged. When the metafilm is adjusted to the vicinity of a spectral singularity, tuning substrate dissipation to a critical value can lead to supper scattering in… 
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