Fig. 3: Fully direct-written metadevices.
From: Tuning direct-written terahertz metadevices with organic mixed ion-electron conductors
a Schematic representation of the fabrication steps employed for the realization of the OMIEC-based tuneable metasurface. b Image of an individual inverse electrical SRR obtained by fs-laser ablation on an inkjet printed silver electrode: the arrow displays the orientation of the in-plane electric field polarization (scale bar corresponds to 10 µm). Amplitude and phase modulation of the complex THz transmission, where the magnitude (c) is calculated with respect to air, while the phase (d) uses the 0.6 V spectrum as reference. The dashed line in c corresponds to the transmission of the metasurface without OMIEC and iongel. e Voltage dependence of the transmission at ~0.64 THz for three consecutive measurement cycles.
