In this work, we develope a tunable narrow-line THz radiation source at about 6 THz frequency, which is based on stimulated polariton scattering (SPS) from a KTiOPO4 (KTP) crystal. ...

黃衍介教授團隊研究結果，榮登2021年Optica "Spotlight on Optics"

We report the design and fabrication of a dielectric-grating waveguide driven by 40-keV electrons to emit narrow-line radiation at 0.56 THz. With a current density of 8 A/cm2, the coherent THz radiation builds up from bunched electrons in about 2 ns.