# Incident Direction Independent Wave Propagation and Unidirectional Lasing.

@article{Jin2018IncidentDI, title={Incident Direction Independent Wave Propagation and Unidirectional Lasing.}, author={L. Jin and Z. Song}, journal={Physical review letters}, year={2018}, volume={121 7}, pages={ 073901 } }

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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