Detector Layout (IMAGE) Moscow Institute of Physics and Technology Caption The transistor channel, made of bilayer graphene (BLG), is sandwiched between two crystals of hexagonal boron nitride (hBN). This structure is placed on an oxidized silicon substrate (shown in gray). The two sleeves of a terahertz antenna are connected between the source and the top gate -- that is, the left and top electrodes shown in gold. Signal voltage is read between the source and the drain terminals -- the right and left electrodes. Credit @tsarcyanide/MIPT Press Office Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.