Bridging the terahertz near-field and far-field observations of liquid crystal based metamaterial absorbers

Wang Lei^{1, 2}, Ge Shijun¹, Chen Zhaoxian¹, Hu Wei¹, Lu Yanqing^{1, †,}

Simulations of liquid crystal based TMAs. (a) Far field reflection spectra for the cases of the LC director parallel to the connecting wires (black curve) in the x–y plane and perpendicular to the electrode (red curve) in the z direction. (b) Near field distribution of the unit cell inside the TMA. Electric field cross sections of the LC layer from top to bottom at resonance frequency 0.842 THz (unbiased) of panel (a). (c) Each THz electric field component is shown at the plane 3 nearby metasurface.