Journal
EPL
Volume 114, Issue 3, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/114/34003
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Funding
- Postdoctoral Science Foundation of China [2015M580456]
- National Science Foundation of China for Excellent Young Scientists [61322504]
- National Excellent Doctoral Dissertation of China [201217]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
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In this letter, we find that nearly total omnidirectional reflection could be achieved in a metallic grating structure with gradient index materials, regardless of the polarization of the incident wave. By bending the straight structure into a metallic grating ring, we design a metacage that can well shield the electromagnetic wave. All the phenomena are well demonstrated from theoretical analysis and numerical simulations. Copyright (C) EPLA, 2016
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