Zhang Hui-Yun, Huang Xiao-Yan, Chen Qi, Ding Chun-Feng, Li Tong-Tong, Lü Huan-Huan, Xu Shi-Lin, Zhang Xiao, Zhang Yu-Ping, Yao Jian-Quan. Tunable terahertz absorber based on complementary graphene meta-surfaceJ. Acta Physica Sinica, 2016, 65(1): 018101. DOI: 10.7498/aps.65.018101