期刊
OPTICS EXPRESS
卷 19, 期 22, 页码 21155-21162出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.021155
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资金
- National Science Foundation of China [90922025, 51032003, 50921061, 10774087]
We propose a design of an extremely broad frequency band absorber based on destructive interference mechanism. Metamaterial of multilayered SRRs structure is used to realize a desirable refractive index dispersion spectrum, which can induce a successive anti-reflection in a wide frequency range. The corresponding high absorptance originates from the destructive interference of two reflection waves from the two surfaces of the metamaterial. A strongly absorptive bandwidth of almost 60GHz is demonstrated in the range of 0 to 70GHz numerically. This design provides an effective and feasible way to construct broad band absorber in stealth technology, as well as the enhanced transmittance devices. (C) 2011 Optical Society of America
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