TY - GEN AU - Plum,E AU - Liu,X-X AU - Fedotov,V A AU - Chen,Y AU - Tsai,D P AU - Zheludev,N I TI - Metamaterials: optical activity without chirality SN - 0031-9007 PY - 2009///0514 KW - Anisotropy KW - Circular Dichroism KW - Microwaves KW - Optics and Photonics KW - methods KW - Stereoisomerism N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1103/PhysRevLett.102.113902 ER -