Circular dichroism in higher-order harmonic generation: Heralding topological phases and transitions in Chern insulators

@article{Chacon2020CircularDI,
  title={Circular dichroism in higher-order harmonic generation: Heralding topological phases and transitions in Chern insulators},
  author={A. Chac'on and Dasol Kim and W. Zhu and S. Kelly and A. Dauphin and E. Pisanty and A. S. Maxwell and A. Pic{\'o}n and M. Ciappina and D. E. Kim and C. Ticknor and A. Saxena and M. Lewenstein},
  journal={Physical Review B},
  year={2020},
  volume={102}
}
The future technological revolution in the production of ultrafast devices lies in the control of materials that will speed-up transistors. The recent discovery of topological states of matter promises a unique opportunity to address this challenge. However, the control and diagnostics of topological materials remain hard to achieve. Here, the authors show an alternative to distinguish a topological phase by its nonlinear-light circular dichroism (CD): the asymmetry of the material-light… Expand
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