TY - JOUR
T1 - High-quality organic 4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) crystals for THz wave generation
AU - Adachi, Hiroaki
AU - Taniuchi, Tetsuo
AU - Yoshimura, Masashi
AU - Brahadeeswaran, Srinivasan
AU - Higo, Teruaki
AU - Takagi, Masayuki
AU - Mori, Yusuke
AU - Sasaki, Takatomo
AU - Nakanishi, Hachiro
PY - 2004/8/15
Y1 - 2004/8/15
N2 - 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 KTiOPO4 (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.
AB - 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 KTiOPO4 (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.
KW - Crystal growth
KW - DAST
KW - Nonlinear optics
KW - Organic material
KW - Terahertz generation
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U2 - 10.1143/JJAP.43.L1121
DO - 10.1143/JJAP.43.L1121
M3 - Article
AN - SCOPUS:6344285821
SN - 0021-4922
VL - 43
SP - L1121-L1123
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 8 B
ER -