Unidirectional reflectionless propagation in non-Hermitian metamaterial based on phase coupling between two resonators

Unidirectional reflectionless propagation in a non-Hermitian metamaterial is obtained based on phase coupling between two resonators. The unidirectional reflectionless propagation can be obtained at exceptional point by adjusting polarization angle θ and distance d between two resonators. Moreover,...

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Bibliographic Details
Published inOptics communications Vol. 414; pp. 172 - 176
Main Authors Yin, Hongda, Bai, Ruiping, Gu, Xintong, Zhang, Cong, Gu, Guang Rui, Zhang, Ying Qiao, Jin, Xing Ri, Lee, YoungPak
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2018
Subjects
Coherent perfect absorption
Metamaterial
Resonator
Unidirectional reflectionlessness
Resonator
Metamaterial
Unidirectional reflectionlessness
Coherent perfect absorption
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Summary:Unidirectional reflectionless propagation in a non-Hermitian metamaterial is obtained based on phase coupling between two resonators. The unidirectional reflectionless propagation can be obtained at exceptional point by adjusting polarization angle θ and distance d between two resonators. Moreover, coherent prefect absorptions are obtained near exceptional point with the high absorbance of ∼0.99 and high quality factor of ∼83.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2018.01.019