Characterization of nonlinear optical parameters of KDP, LiNbO3 and BBO crystals
Characterization of nonlinear optical parameters of KDP, LiNbO3 and BBO crystals
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DOI：
10.1016/j.optcom.2003.10.046
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发表时间：
2004-01-02
影响因子：
2.4
通讯作者：
Usmanov, T
中科院分区：
文献类型：
--
作者：
Ganeev, RA;Kulagin, IA;Usmanov, T
用Z扫描技术测量了KDP、BBO和LiNbO3晶体在1064 nm和532 nm波长处的三阶非线性折射率（chi（3））和非线性折射率（n（2））。测量在不同的脉冲能量、聚焦条件和晶体长度下进行。结果表明，相位匹配角的增大导致KDP晶体的χ（3）减小。测量了KDP、BBO和LiNbO_3晶体的多光子吸收参数。对非线性极化率的实验值和理论值进行了分析和比较。(C)2003 Elsevier B.V.保留所有权利。
Third-order nonlinear susceptibilities (chi((3))) and nonlinear refractive indices (n(2)) of KDP, BBO and LiNbO3 crystals are measured at the wavelengths of 1064 nm and 532 nm by Z-scan technique. The measurements were carried out at different pulse energies, focusing conditions, and crystals' lengths. It was shown that the increase of phase-matching angle leads to the decreasing of chi((3)) of KDP crystals. The parameters of multi-photon absorption in KDP, BBO and LiNbO3 crystals are determined. The analysis and comparison of experimental and theoretical values of nonlinear susceptibilities are presented. (C) 2003 Elsevier B.V. All rights reserved.