Type
ArticleKAUST Department
Applied Mathematics and Computational Science ProgramComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Date
2016-05-18Online Publication Date
2016-05-18Print Publication Date
2016-04-01Permanent link to this record
http://hdl.handle.net/10754/621499
Metadata
Show full item recordAbstract
The absorption efficiency of a coherent perfect absorber usually depends on the phase coherence of the incident waves on the surfaces. Here, we present a scheme to create a multi-channel coherent perfect absorber in which the constraint of phase coherence is loosened. The scheme has a multi-layer structure such that incident waves in different channels with different angular momenta can be simultaneously and perfectly absorbed. This absorber is robust in achieving high absorption efficiency even if the incident waves become "incoherent" and possess "random" wave fronts. Our work demonstrates a unique approach to designing highly efficient metamaterial absorbers. © CopyrightEPLA, 2016.Citation
Bai P, Wu Y, Lai Y (2016) Multi-channel coherent perfect absorbers. EPL (Europhysics Letters) 114: 28003. Available: http://dx.doi.org/10.1209/0295-5075/114/28003.Sponsors
The work described here is supported by King Abdullah University of Science and Technology, the State Key Program for Basic Research of China (No. 2014CB360505, No. 2012CB921501), National Natural Science Foundation of China (No. 11374224), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).Publisher
IOP PublishingJournal
EPL (Europhysics Letters)ae974a485f413a2113503eed53cd6c53
10.1209/0295-5075/114/28003