Difference-frequency terahertz-wave generation from 4-dimethylamino-N-methyl-4-stilbazolium-tosylate by use of an electronically tuned Ti : sapphire laser

Authors
Kawase, K Mizuno, M Sohma, S Takahashi, H Taniuchi, T Urata, Y Wada, S Tashiro, H Ito, H
Citation
K. Kawase et al., Difference-frequency terahertz-wave generation from 4-dimethylamino-N-methyl-4-stilbazolium-tosylate by use of an electronically tuned Ti : sapphire laser, OPTICS LETT, 24(15), 1999, pp. 1065-1067
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
24
Issue
15
Year of publication
1999
Pages
1065 - 1067
Database
ISI
SICI code
0146-9592(19990801)24:15<1065:DTGF4>2.0.ZU;2-K
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 differen ce frequency between two oscillating wavelengths of an electronically tuned Ti:sapphire laser. In LiNbO3, LiTaO3, KTiOPO4, and GaP crystals, THz-wave generation was not observed under the same experimental conditions. This re sult proves the high efficiency of DAST crystals for generation of differen ce-frequency THz waves. (C) 1999 Optical Society of America.