Room-Temperature Terahertz Oscillation of Electron Devices

Abstract

Compact and coherent light sources are key components for development of terahertz frequency range in which various applications are expected. Recent progress in room-temperature terahertz oscillators using resonant tunneling diodes are shown here. Fundamental oscillation up to 1.04 THz has been achieved with a structure having short transit time of electrons. This is the first oscillation above 1 THz in room-temperature electronic single oscillators. Structures for high output power, frequency change with bias voltage, and spectral linewidth are also described.