Title :
Widely-tunable THz-wave generation in 2-20 THz range from DAST crystal by nonlinear difference frequency mixing
Author :
Taniuchi, T. ; Okada, S. ; Nakanishi, H.
Author_Institution :
Inst. of Multidisciplinary Res. for Adv. Mater., Tohoku Univ., Sendai, Japan
Abstract :
Widely-tunable terahertz (THz)-wave generation from 2 to 20 THz can be achieved in DAST crystal by collinear mixing of dual wavelengths in the range 1300-1450 nm. Output energy of 12 nJ/pulse at 4.4 THz and 152 nJ/pulse at 19 THz was obtained at pump energy of 0.6 mJ/pulse.
Keywords :
infrared sources; optical frequency conversion; optical parametric oscillators; optical phase matching; organic compounds; submillimetre wave generation; 1300 to 1450 nm; 2 to 20 THz; 4-N,N-dimethylamino-4´-N´-methyl-stilbazolium tosylate; DAST crystal; collinear mixing; dual-wavelength OPO; nonlinear difference frequency mixing; nonlinear optical crystals; organic crystal; phase-matching condition; pulse radiation; widely-tunable terahertz wave generation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040036
