Controllable Photonic Topological Insulating Chain Based on Non-Hermiticity

被引：0
作者：
Takata, Kenta [1 ,2 ]
Notomi, Masaya [1 ,2 ,3 ]
机构：
[1] NTT Corp, NTT Nanophoton Ctr, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 2430198, Japan
[2] NTT Corp, NTT Basic Res Labs, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 2430198, Japan
[3] Tokyo Inst Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan
来源：
2018 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) | 2018年
关键词：
STATES;
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暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We determine theoretically a one-dimensional photonic insulating lattice whose bulk topology is controllable simply by tuning gain and loss. The system with four-cavity periods realizes a non-Hermiticity-induced topological transition and reconfigurable midgap topological interface states.
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页数：2
相关论文
共 16 条
[1]  
Aubry S., 1980, Annals of the Israel Physical Society, V3, P133
[2]   Real spectra in non-Hermitian Hamiltonians having PT symmetry [J].
Bender, CM ;
Boettcher, S .
PHYSICAL REVIEW LETTERS, 1998, 80 (24) :5243-5246
[3]   Edge states and topological phases in non-Hermitian systems [J].
Esaki, Kenta ;
Sato, Masatoshi ;
Hasebe, Kazuki ;
Kohmoto, Mahito .
PHYSICAL REVIEW B, 2011, 84 (20)
[4]   Parity-time symmetry in coherently coupled vertical cavity laser arrays [J].
Gao, Zihe ;
Fryslie, Stewart T. M. ;
Thompson, Bradley J. ;
Carney, P. Scott ;
Choquette, Kent D. .
OPTICA, 2017, 4 (03) :323-329
[5]   Possible realization of directional optical waveguides in photonic crystals with broken time-reversal symmetry [J].
Haldane, F. D. M. ;
Raghu, S. .
PHYSICAL REVIEW LETTERS, 2008, 100 (01)
[6]   Anomalous Edge State in a Non-Hermitian Lattice [J].
Lee, Tony E. .
PHYSICAL REVIEW LETTERS, 2016, 116 (13)
[7]   Optical Resonator Analog of a Two-Dimensional Topological Insulator [J].
Liang, G. Q. ;
Chong, Y. D. .
PHYSICAL REVIEW LETTERS, 2013, 110 (20)
[8]   Topological invariance and global Berry phase in non-Hermitian systems [J].
Liang, Shi-Dong ;
Huang, Guang-Yao .
PHYSICAL REVIEW A, 2013, 87 (01)
[9]  
Lu L, 2014, NAT PHOTONICS, V8, P821, DOI [10.1038/NPHOTON.2014.248, 10.1038/nphoton.2014.248]
[10]   Beam dynamics in PT symmetric optical lattices [J].
Makris, K. G. ;
El-Ganainy, R. ;
Christodoulides, D. N. ;
Musslimani, Z. H. .
PHYSICAL REVIEW LETTERS, 2008, 100 (10)
12