AlGaN/GaN heterostructure transistors for the generation and detection of THz radiation

The AlGaN/GaN heterostructure is an excellent candidate for the realization of sub-millimeter wave power amplifiers, which can serve as integrated power source for THz frequency multipliers. Here we discuss the operation of AlGaN/GaN transistors as THz detector, which provides information on the behavior of the electron system at THz frequencies. © 2010 IEEE.