Key Laboratory of Nanodevices,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China
Abstract:
We report on the characterization of a room temperature terahertz detector based on a GaN/AlGaN high electron mobility transistor integrated with three patch antennas.Experimental results prove that both horizontal and perpendicular electric fields are induced in the electron channel.A photocurrent is generated when the electron channel is strongly modulated by the gate voltage.Despite the large channel length and gate-source/drain distance, significant horizontal and perpendicular fields are achieved.The d...