Inverse design of higher-order photonic topological insulators
The recently discovered second-order photonic topological insulators (SPTIs) are characterized by gapped edge states and robust corner states, and they provide novel approaches to the traditional ways to manipulate light. In a general case, the overlapped band gap of nontrivial and trivial photonic...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2020-05-01
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Series: | Physical Review Research |
Online Access: | http://doi.org/10.1103/PhysRevResearch.2.023115 |