| Title | Polarization-independent dual-band terahertz metamaterial absorbers based on gold/parylene-C/silicide structure |
| Authors | Wen, Yongzheng Ma, Wei Bailey, Joe Matmon, Guy Yu, Xiaomei Aeppli, Gabriel |
| Affiliation | Peking Univ, Inst Microelect, Natl Key Lab Sci & Technol Micro Nano Fabricat, Beijing 100871, Peoples R China. UCL, London Ctr Nanotechnol, London WC1H 0AH, England. UCL, Dept Phys & Astron, London WC1H 0AH, England. UCL, Ctr Math & Phys Life Sci & Expt Biol, London WC1E 6BT, England. |
| Keywords | TECHNOLOGY |
| Issue Date | 2013 |
| Publisher | applied optics |
| Citation | APPLIED OPTICS.2013,52,(19),4536-4540. |
| Abstract | We design, fabricate, and characterize dual-band terahertz (THz) metamaterial absorbers with high absorption based on structures consisting of a cobalt silicide (Co-Si) ground plane, a parylene-C dielectric spacer, and a metal top layer. By combining two periodic metal resonators that couple separately within a single unit cell, a polarization-independent absorber with two distinct absorption peaks was obtained. By varying the thickness of the dielectric layer, we obtain absorptivity of 0.76 at 0.76 THz and 0.97 at 2.30 THz, which indicates the Co-Si ground plane absorbers present good performance. (C) 2013 Optical Society of America |
| URI | http://hdl.handle.net/20.500.11897/291380 |
| ISSN | 1559-128X |
| DOI | 10.1364/AO.52.004536 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | 信息科学技术学院 |
