Narrowband perfect terahertz absorber based on polar-dielectrics metasurface

Zhao Meng-Meng¹, Fu Shu-Fang^{1, †}, Zhou Sheng^{1, 2, ‡}, Song Yu-Ling¹, Zhang Qiang¹, Yin Yong-Qi¹, Zhao Yu-Tian¹, Liang Hong³, Wang Xuan-Zhang¹

Absorption spectra of the PAMS with the PC layer thickness from 0.5 μm to 3.0 μm for TE wave incidence: (a) the PC layer thickness from 0.5 μm to 1.5 μm, (b) the PC layer thickness from 2.0 μm to 3.0 μm.