Low-loss Broadband Negative Refractive Index due to Nonresonant 2D Helical Chiral Metamaterial

Autor: Song, Kun, Wang, Min, Su, Zhaoxian, Ding, Changlin, Liu, Yahong, Luo, Chunrong, Zhao, Xiaopeng, Bhattarai, Khagendra, Zhou, Jiangfeng
Rok vydání: 2017
Předmět:
Druh dokumentu: Working Paper
Popis: We demonstrated a 2D helical chiral metamaterial that exhibits broadband strong optical activity resulting nonresonant Drude-like response. The strong chirality leads to broadband negative refractive index with high figure of merit (>90) and extremely low loss (<2% per layer). The optical activity are insensitive to the angles of incident electromagnetic waves, thereby enabling more flexibility in polarization manipulation applicaitons.
Databáze: arXiv