In a system with a ill-defined topology the number of edge waves propagating inward to some junction point may be different from the number of edge waves propagating in the outward direction. The ill-defined topology can be used to abruptly halt the wave propagation at a topological singularity with a massive field enhancement. (IMAGE)

SPIE--International Society for Optics and Photonics

In a system with a ill-defined topology the number of edge waves propagating inward to some junction point may be different from the number of edge waves propagating in the outward direction. The ill-defined topology can be used to abruptly halt the wave propagation at a topological singularity with a massive field enhancement.

Caption

In a system with a ill-defined topology the number of edge waves propagating inward to some junction point may be different from the number of edge waves propagating in the outward direction. The ill-defined topology can be used to abruptly halt the wave propagation at a topological singularity with a massive field enhancement.

Credit

D. Fernandes and M. Silveirinha, TECNICO LISBOA.

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