caa a22 4500 445368748 CHVBK 20180317142939.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00340-011-4415-5 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4415-5 Empirical study of nonlinearity tensor dominating THz generation in barium borate crystal through optical rectification [Elektronische Daten] [Y. Zhang, Y. Zheng, S. Xu, W. Liu] The optical rectification is an important optical method to generate the THz wave. However, there is a lack of knowledge about the properties of the nonlinearity tensor which governs the optical rectification process. In this work, we demonstrate that some key information of the nonlinearity tensor of barium borate (BBO) crystal could be revealed by 2-dimensional time-domain spectroscopic measurements. The experimental results indicate that d 22 of the nonlinearity tensor coefficients of BBO crystal plays negligible role during the THz generation by optical rectification. At the same time, a proportional relationship among three other nonzero nonlinearity tensor coefficients, i.e., d 33, d 31, and d 15, could be obtained empirically. It is worth noting that our method is also applicable to similar nonlinearity study in THz region of other types of crystals. Springer-Verlag, 2011 Zhang Y. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut Zheng Y. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut Xu S. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut Liu W. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut Applied Physics B Springer-Verlag 103/4(2011-06-01), 831-835 0946-2171 103:4<831 2011 103 340 https://doi.org/10.1007/s00340-011-4415-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4415-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Y. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Zheng Y. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Xu S. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut NATIONALLICENCE 700 1- Liu W. Institute of Modern Optics, Key Laboratory of Opto-electronic, Information Science and Technology, Nankai University, Education Ministry of China, 300071, Tianjin, China aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/4(2011-06-01), 831-835 0946-2171 103:4<831 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer