| Title | Broadband terahertz metamaterial absorber based on asymmetric resonators with perfect absorption |
| Authors | Wen, Yongzheng Ma, Wei Bailey, Joe Matmon, Guy Yu, Xiaomei |
| Affiliation | National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Institute of Microelectronics, Peking University, Beijing, China London Centre for Nanotechnology, Department of Physics and Astronomy, University College London, 17-19 Gordon Street, London, United Kingdom Centre for Mathematics and Physics in the Life Sciences and Experimental Biology, University College London, London, United Kingdom |
| Issue Date | 2015 |
| Publisher | ieee transactions on terahertz science and technology |
| Citation | IEEE Transactions on Terahertz Science and Technology.2015,5,(3),406-411. |
| Abstract | In this paper, a broadband terahertz (THz) metamaterial absorber using asymmetric split ring resonator (ASR) was designed, fabricated, and characterized. By breaking the symmetry of a split ring resonator, two asymmetric resonances are excited from a dipole resonance, which enhance both the absorption and Q-factor. With the integration of four different ASRs into one unit cell, a broadband absorber experimentally obtained a 0.82-THz bandwidth with absorptivity of more than 0.9, which is 3.4 times as wide as the 0.24-THz bandwidth of the symmetric dipole peak. The proposed broadband absorber has great application potentials in the THz spectroscopy, imaging, and sensing. ? 2015 IEEE. |
| URI | http://hdl.handle.net/20.500.11897/295077 |
| ISSN | 2156342X |
| DOI | 10.1109/TTHZ.2015.2401392 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 信息科学技术学院 |
