Consequences of nonreciprocity in reflection from a truncated spatial Kramers–Kronig medium

@article{Saha2016ConsequencesON,
  title={Consequences of nonreciprocity in reflection from a truncated spatial Kramers–Kronig medium},
  author={Sudipta Saha and K. S. Sai and Nirmalya Ghosh and Subhasish Dutta Gupta},
  journal={Journal of Optics},
  year={2016},
  volume={19}
}
We study the truncated Kramers–Kronig (KK) medium to reveal the effects of nonreciprocity in reflection on the scattering and the wave guiding properties. We focus on the simplest possible spatial profile mimicking the dielectric response. We show that a finite slab of KK medium can support only one sided null scattering under bidirectional identical illumination. However, for a phase lag between the two incident beams it is possible to have null scattering on the other side. This is shown to… 
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Spatial Kramers–Kronig (KK) relations have been recently proposed to achieve perfect absorption without using any gain elements or highly anisotropic materials. However, such perfect absorption is…

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