High-Peak-Power, Tunable Terahertz-Wave Parametric Source

Abstract

We report on the development of a high-peak-power, single-longitudinal-mode and tunable injectionseeded terahertz-wave parametric generator using MgO:LiNbO₃, which operates at room temperature. The high peak power (> 120 W) is enough to allow easy detection by commercial and calibrated pyroelectric detectors, and the spectral resolution (< 5 GHz) is the Fourier transform limit of the subnanosecond terahertz-wave pulse. The tunability (1.2 ‒ 2.8 THz) and the small footprint size (A3 paper, 29.7 × 42 cm) are suitable for a variety of applications.