Enhanced circular dichroism based on the dual-chiral metamaterial in terahertz regime
Shao Jian1, Li Jie1, Wang Ying-Hua1, Li Jia-Qi1, Dong Zheng-Gao1, †, , Zhou Lin2
       

(a)–(f) The circular dichroism with a variation of the asymmetric distance d. (g) The variation trend of CD1 and CD2 with d increasing.