High-Quality Organic 4-Dimethylamino-N-methyl-4-stilbazolium Tosylate (DAST) Crystals for THz Wave Generation

Content Provider	Scilit
Author	Adachi, Hiroaki Taniuchi, Tetsuo Yoshimura, Masashi Brahadeeswaran, Srinivasan Higo, Teruaki Takagi, Masayuki Mori, Yusuke Sasaki, Takatomo Nakanishi, Hachiro
Copyright Year	2004
Description	Journal: Japanese Journal of Applied Physics Using the Slope Nucleation Method (SNM) and highly purified materials along with an optimized growth program, we produced high-quality organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystals. The growth method greatly improved crystallinity. The difference frequency mixing, based on the $KTiOPO_{4}$ (KTP)-optical parametric oscillator (OPO), generated a coherent, tunable, THz wave in the range of 2 to 30 THz using DAST crystals. These superior DAST crystals also extended the THz generation time. We achieved a constant THz energy output for over 10 h, whereas conventional DAST crystals had reduced the THz wave output in less than 1 hour. We anticipate increased use of DAST crystals for THz generation because of superior performance.
Related Links	http://iopscience.iop.org/article/10.1143/JJAP.43.L1121/pdf
ISSN	00214922
e-ISSN	13474065
DOI	10.1143/jjap.43.l1121
Journal	Japanese Journal of Applied Physics
Issue Number	8B
Volume Number	43
Language	English
Publisher	IOP Publishing
Publisher Date	2004-07-30
Access Restriction	Open
Subject Keyword	Journal: Japanese Journal of Applied Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering