Title :
A novel approach to further decrease the thickness of ultrathin perfect metamaterial absorbers
Author :
Li Huang ; Chowdhury, Dibakar Roy ; Ramani, S. ; Reiten, Matthew T. ; Shengnian Luo ; Azad, Abul K. ; Taylor, Antoinette J. ; Hou-Tong Chen
Author_Institution :
Phys. Dept., Harbin Inst. of Technol., Harbin, China
Abstract :
This work presents a novel approach to further decrease the thickness of the ultra thin perfect metamaterial absorbers by adjusting the geometric dimensions of the resonators. Both simulational and experimental results with a typical metamaterial absorber structure show that the thickness of the absorber decreases from ~8 μm to ~4 μm by increasing the width of the cross-resonator from 10 μm to 40 μm. The results can be well explained with the interference theory which shows that the near-unity absorption is due to a destructive interference of the multiple reflections in the metamaterial absorber.
Keywords :
metamaterials; resonators; destructive interference; metamaterial absorber structure; near unity absorption; resonators; ultrathin perfect metamaterial absorber; Absorption; Dielectrics; Gold; Interference; Magnetic materials; Metamaterials; Polyimides;
Conference_Titel :
Metamaterials (Meta), 2012 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-2807-4
DOI :
10.1109/META.2012.6464921
