Journal
APPLIED PHYSICS LETTERS
Volume 95, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3276072
Keywords
light absorption; metamaterials; optical losses
Categories
Funding
- National Basic Research Program of China (973) [2007CB310407]
- NSFC [60801023]
- International S&T Cooperation Program of China [2007DFR10250]
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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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