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arXiv · 1705.02676

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

Kun Song·Min Wang·Zhaoxian Su·Changlin Ding·Yahong Liu·Chunrong Luo·Xiaopeng Zhao·Khagendra Bhattarai·Jiangfeng Zhou
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Abstract

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.

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Kun Song, Min Wang, Zhaoxian Su, Changlin Ding, Yahong Liu, Chunrong Luo, Xiaopeng Zhao, Khagendra Bhattarai, Jiangfeng Zhou. 2017-05-07. Low-loss Broadband Negative Refractive Index due to Nonresonant 2D Helical Chiral Metamaterial. https://arxiv.org/abs/1705.02676

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