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Absence of Exceptional Points in Square Waveguide Arrays with Apparently Balanced Gain and Loss
The concept of parity-time (PT) symmetry in the field of optics has been intensively explored. This study shows the absence of exceptional points in a three-dimensional system composed of a square waveguide array with diagonally-balanced gain/loss distribution. More specifically, we show that an arr...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4780277/ https://www.ncbi.nlm.nih.gov/pubmed/26948829 http://dx.doi.org/10.1038/srep22711 |