caa a22 4500 445305797 CHVBK 20180317142612.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10762-011-9768-7 doi (NATIONALLICENCE)springer-10.1007/s10762-011-9768-7 Terahertz Generation and Optical Properties of Lithium Ternary Chalcogenide Crystals [Elektronische Daten] [Kei Takeya, Yoshiaki Takemoto, Iwao Kawayama, Hironaru Murakami, Takeshi Matsukawa, Masashi Yoshimura, Yusuke Mori, Masayoshi Tonouchi] We have investigated the generation of THz radiation in lithium ternary compounds LiInSe2, LiGaSe2, LiInS2, LiGaS2 and characterized these materials by THz time-domain spectroscopy. Using 800nm femtosecond excitation pulse, all crystals produce THz radiation due to an optical rectification corresponding to the nonlinear optical coefficient d 33. We have measured refractive indices along the x-axis and the z-axis for all crystals in the range 150-700μm and fitted them by using Sellmeier equation. With respect to the obtained results, velocity-matching between the incident laser pulse and the generated THz wave cannot be achieved at 800nm, but for shorter wavelengths. Hence, an enhanced THz generation in Lithium ternary compounds may be observed by using a laser emitting below 800nm. Springer Science+Business Media, LLC, 2011 Terahertz nationallicence Nonlinear optical crystal nationallicence Refractive index nationallicence Velocity-matching nationallicence Takeya Kei Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Takemoto Yoshiaki Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Kawayama Iwao Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Murakami Hironaru Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Matsukawa Takeshi Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Yoshimura Masashi Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Mori Yusuke Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Tonouchi Masayoshi Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 426-433 1866-6892 32:4<426 2011 32 10762 https://doi.org/10.1007/s10762-011-9768-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-011-9768-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Takeya Kei Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Takemoto Yoshiaki Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Kawayama Iwao Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Murakami Hironaru Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Matsukawa Takeshi Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Yoshimura Masashi Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Mori Yusuke Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 700 1- Tonouchi Masayoshi Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, 565-0871, Suita, Osaka, Japan aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 426-433 1866-6892 32:4<426 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer