Theoretical study on dynamical planar-chirality switching in checkerboard-like metasurfaces Yoshiro Urade, Yosuke Nakata, Toshihiro Nakanishi and Masao Kitano EPJ Appl. Metamat., 4 (2017) 2 Published online: 13 January 2017 DOI: 10.1051/epjam/2016016