期刊
APPLIED PHYSICS LETTERS
卷 103, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4821951
关键词
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资金
- NSFC [61271085, 60990322, 91130004]
- National High Technology Research and Development Program (863 Program) of China [2012AA030402]
- NSF of Zhejiang Province [LY12F05005]
- Program of Zhejiang Leading Team of Science and Technology Innovation
- NCET
- MOE SRFDP of China
- DIRP grant of Singapore [R144000304232]
- AOARD
Electromagnetic invisible devices usually designed by transformation optics are rather complicated in material parameters and not suitable for general applications. Recently, a topology optimized cloak based on level-set method was proposed to realize nearly perfect cloaking [Fujii et al., Appl. Phys. Lett. 102, 251106 (2013)]. In this work, we experimentally implemented this idea and fabricated a unidirectional cloak with a relative large invisible region made of single dielectric material. Good cloaking performance was verified through measurement which consists very well with numerical simulation. The advantages and disadvantages of this optimization method are also discussed. (C) 2013 AIP Publishing LLC.
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