Ultra-broadband and high-efficiency polarization conversion metasurface with multiple plasmon resonance modes

Dong Guo-Xiang^{1, 2}, Shi Hong-Yu², Xia Song^{1, 2, †,}, Li Wei^{1, 2}, Zhang An-Xue¹, Xu Zhuo^{1, 2}, Wei Xiao-Yong^{1, 2}

Simulated distributions of the electric field E_z of the metasurface unit cell at (a) plasmon resonances (i), (b) plasmon resonances (ii), (c) plasmon resonances (iii).