期刊
OPTICS EXPRESS
卷 16, 期 20, 页码 15449-15454出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.16.015449
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资金
- National Natural Science Foundation of China [50632030, 10474077]
- Ministry of Science and Technology of China [2002CB613307]
- Air Force University of Engineering
The approach of designing cloaks with arbitrary shapes was investigated. The coordinate transformation was considered as a homeomorphous topological mapping and the related geometrical description was proposed by introducing position surfaces and tracing lines. Then an approximation approach was presented, which considers a close shape as a polyhedron and performs the spatial compression in a general method. As an example of this approach, we deduced the material parameter equations for two-dimensional polygon cloaks and confirmed the results through numerical simulations. Our approach opens up possibilities of designing practical cloaks with arbitrary shapes through numerical or/and semi-analytical methods. (C) 2008 Optical Society of America
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