Widely Tunable Terahertz-Wave Source using an Organic DAST Crystal

被引:0
|
作者
Taniuchi, Tetsuo [1 ]
Okada, Shuji [2 ]
Nakanishi, Hachiro [1 ]
机构
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
[2] Yamagata Univ, Fac Engn, Yonezawa, Yamagata 9928510, Japan
关键词
DAST; Terahertz; Nonlinear optics; Difference frequency generation; Optical parametric oscillation; Organic crystal;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Widely tunable terahertz (THz) waves from 2 to 20 THz were generated in a 4-N, N-dimethylamino-4-N-methyl-stilbazolium tosylate (DAST) crystal by difference frequency mixing. We developed a dual-wavelength optical parametric oscillator (OPO) near 1550 nm using two KTP crystals as a light source. Power enhancement of THz-wave generation exceeding 100 nJ was achieved using high-quality DAST crystals by improving the OPO. Our tunable THz-wave source, which consists of a DAST and a dual wavelength OPO, should be useful for practical THz-imaging, THz-ranging, and spectroscopic applications.
引用
收藏
页码:57 / 60
页数:4
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