Incident Direction Independent Wave Propagation and Unidirectional Lasing.

  title={Incident Direction Independent Wave Propagation and Unidirectional Lasing.},
  author={L. Jin and Z. Song},
  journal={Physical review letters},
  volume={121 7},
  • L. Jin, Z. Song
  • Published 31 March 2018
  • Physics
  • Physical review letters
We propose an incident direction independent wave propagation generated by properly assembling different unidirectional destructive interferences (UDIs), which is a consequence of the appropriate match between synthetic magnetic fluxes and the incident wave vector. Single-direction lasing at spectral singularity is feasible without introducing nonlinearity. UDI allows unidirectional lasing and unidirectional perfect absorption; when they are combined in a parity-time-symmetric manner, the… 
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