Nonreciprocal topological mode conversion by encircling an exceptional point in dynamic waveguides

The topology of exceptional points (EPs) has been revealed by taking stationary or dynamical encircling around them, which induces eigenstate exchange or chiral mode conversion. However, the conversions are usually reciprocal obeying restricted transmittances. Here we propose the concept of nonrecip...

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Veröffentlicht in:	Optics letters 2023-08, Vol.48 (15), p.4089-4092
Hauptverfasser:	Liu, Qingjie, Wang, Tiantian, Lei, Quan, Zhao, Dong, Ke, Shaolin
Format:	Artikel
Sprache:	eng
Schlagworte:	Closed loops Conversion Eigenvectors Phase matching Propagation Propagation modes Topology Transmittance Waveguides
Online-Zugang:	Volltext
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