Ultra-narrow unidirectional transmission filter assisted by topological interface state in one-dimensional photonic crystal heterostructure

2019 ◽  
Vol 48 (3) ◽  
pp. 393-399 ◽  
Author(s):  
Hua Gao ◽  
GuoGuo Wei ◽  
Chong Miao ◽  
Peng Dong ◽  
YunSong Zhou
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