Research on topological edge state in a non-Hermitian system based on the Kekul&#233; lattice

Jiong XU; Xiaofei ZANG

doi:10.3969/j.issn.1005-5630.2023.003.001

Journals >Optical Instruments >Volume 45 >Issue 3 >Page 1 > Article

Optical Instruments
Vol. 45, Issue 3, 1 (2023)

Research on topological edge state in a non-Hermitian system based on the Kekulé lattice

Jiong XU^1,2 and Xiaofei ZANG^1,2,*

Author Affiliations

¹Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China

²School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

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DOI: 10.3969/j.issn.1005-5630.2023.003.001 Cite this Article

Jiong XU, Xiaofei ZANG. Research on topological edge state in a non-Hermitian system based on the Kekulé lattice[J]. Optical Instruments, 2023, 45(3): 1 Copy Citation Text

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Fig. 1. Schematic of photonic crystals and type of gain and loss configuration

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Fig. 2. Bulk energy spectra and edge energy spectra

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Fig. 3. Bulk energy spectra

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Fig. 4. Edge energy spectra

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Fig. 5. Distribution of edge energy field

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Jiong XU, Xiaofei ZANG. Research on topological edge state in a non-Hermitian system based on the Kekulé lattice[J]. Optical Instruments, 2023, 45(3): 1

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