@article{016c23ead3c642d3aa9b65f27a96e3d4,
title = "A Knotted Metamolecule with Axisymmetric Strong Optical Activity",
abstract = "Optical activity is the ability of chiral materials to rotate linearly polarized electromagnetic waves. A knotted chiral metamolecule is introduced here that exhibits strong optical activity corresponding to a 90° polarization rotation of the incident waves. More importantly, the torus knot structure is intrinsically chiral and multifold axisymmetric. Consequently, the observed polarization rotation behavior is found to be independent of how the incident wave is polarized. The metamolecule is fabricated through selective laser melting and experimentally validated in the microwave spectrum. This work represents the first ever metamolecule to be reported that is intrinsically axisymmetric and capable of simultaneously exhibiting strong optical activity.",
author = "Wending Mai and Lei Kang and Ronald Jenkins and Danny Zhu and Chunxu Mao and Werner, {Pingjuan L.} and Yifan Chen and Werner, {Douglas H.}",
note = "Funding Information: This work was partially funded by the EPSRC Program (EP/R013918/1), the Penn State MRSEC, Center for Nanoscale Science (NSF DMR‐1420620), the DARPA/DSO Extreme Optics and Imaging (EXTREME) Program (HR00111720032), and the National Science Foundation of China (61901132). The opinions in this work are solely of the authors and do not necessarily reflect those of the U.S. Military Academy, the U.S. Army, or the Department of Defense. Funding Information: This work was partially funded by the EPSRC Program (EP/R013918/1), the Penn State MRSEC, Center for Nanoscale Science (NSF DMR-1420620), the DARPA/DSO Extreme Optics and Imaging (EXTREME) Program (HR00111720032), and the National Science Foundation of China (61901132). The opinions in this work are solely of the authors and do not necessarily reflect those of the U.S. Military Academy, the U.S. Army, or the Department of Defense.",
year = "2020",
month = dec,
day = "3",
doi = "10.1002/adom.202000948",
language = "English (US)",
volume = "8",
journal = "Advanced Optical Materials",
issn = "2195-1071",
publisher = "John Wiley and Sons Inc.",
number = "23",
}