期刊
APPLIED PHYSICS LETTERS
卷 95, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3276072
关键词
light absorption; metamaterials; optical losses
资金
- National Basic Research Program of China (973) [2007CB310407]
- NSFC [60801023]
- International S&T Cooperation Program of China [2007DFR10250]
We report the design, simulation, and measurement of a dual-band metamaterial absorber in the terahertz region. Theoretical and experimental results show that the absorber has two distinct and strong absorption points near 0.45 and 0.92 THz, both which are related to the LC resonance of the metamaterial. The distributions of the power flow and the power loss indicate that the absorber is an excellent electromagnetic wave collector: the wave is first trapped and reinforced in certain specific locations and then completely consumed. This dual-band absorber has applications in many scientific and technological areas.
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