Journal
OPTICS COMMUNICATIONS
Volume 414, Issue -, Pages 172-176Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2018.01.019
Keywords
Metamaterial; Resonator; Unidirectional reflectionlessness; Coherent perfect absorption
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Funding
- National Natural Science Foundation of China [11364044]
- Education Department of Jilin Province Science and Technology Research [JJKH20170455KJ]
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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 theta and distance d between two resonators. Moreover, coherent prefect absorptions are obtained near exceptional point with the high absorbance of similar to 0.99 and high quality factor of similar to 83. (C) 2018 Elsevier B.V. All rights reserved.
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