Flat bands in lattices with non-Hermitian coupling
We study non-Hermitian photonic lattices that exhibit competition between conservative and non-Hermitian (gain/loss) couplings. A bipartite sublattice symmetry enforces the existence of non-Hermitian flat bands, which are typically embedded in an auxiliary dispersive band and give rise to nondiffrac...
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| Main Authors: | , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
2018
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| 在線閱讀: | https://hdl.handle.net/10356/80720 http://hdl.handle.net/10220/46594 |
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| 機構: | Nanyang Technological University |
| 語言: | English |