Fig. 1. (a) Schematic of the flexible and transparent TMA. (b) The geometry of a unit cell.

Fig. 2. (a), (b) Simulated absorptivity spectra of the proposed TMA under TE (TM) polarization with different θ. (c) Simulated electric field distribution of a unit cell under 60° and 90°. (d) Simulated surface current distribution between the crossed ITO arm resonator and the bottom layer at 0.977 THz in TE polarization.

Fig. 3. (a), (b) Simulated absorptivity spectra of the proposed TMA in TE (TM) polarization with different thicknesses.

Fig. 4. (a) Photograph of the fabricated sample. (b) Photograph of the fabricated sample in the bending state. (c) Cross resonator in a microscope with the reflection mode. x=100μm, y=120μm.

Fig. 5. (a) Time-domain results of the THz absorber. (b) Absorptivity spectra of the proposed TMA from 0.5 to 2.0 THz for TE and TM waves.

Fig. 6. (a) Geometry of a unit cell after adding the air layer. (b) Absorptivity spectra of the tunable and transparent TMA.