title: Difference-frequency terahertz-wave generation from 4-dimethylamino-N-methyl-4-stilbazolium-tosylate by use of an electronically tuned Ti:sapphire laser.
abstract: Among nonlinear materials, the organic ionic salt crystal 4-dimethylamino- N -methyl-4-stilbazolium-tosylate (DAST) is known for its large nonlinearity. We generated a coherent terahertz (THz) wave, using DAST, from the difference frequency between two oscillating wavelengths of an electronically tuned Ti:sapphire laser. In LiNbO(3), LiTaO(3), KTiOPO(4), and GaP crystals, THz-wave generation was not observed under the same experimental conditions. This result proves the high efficiency of DAST crystals for generation of difference-frequency THz waves.
authors: K
authors: K
authors: Kawase
authors: M
authors: M
authors: Mizuno
authors: S
authors: S
authors: Sohma
authors: H
authors: H
authors: Takahashi
authors: T
authors: T
authors: Taniuchi
authors: Y
authors: Y
authors: Urata
authors: S
authors: S
authors: Wada
authors: H
authors: H
authors: Tashiro
authors: H
authors: H
authors: Ito