中国激光, 2000, 27 (12): 1118, 网络出版: 2006-08-09
共轭有机高聚物PPQ薄膜非线性吸收的Z-扫描测量
Z-scan Measurement on the Third-order Nonlinear Optical Absorption of Conjugated PPQ Polymer Film
摘要
用Z-扫描方法在532 nm波长测量了共轭高聚物PPQ(polyphenylquinoxalines)薄膜的三阶光学非线性参数,发现其较强的非线性(双光子)吸收系数β≈0.59 cm/MW。同时得到Kerr系数n2≈9.5×10-10 esu,与用其他方法的测量结果较好地吻合。
Abstract
Measurements on the third order optical nonlinearities of the conjugated polymeric cast film of PPQ (polyphenylquinoxalines) were performed based on the so called Z-scan method using a frequency doubled mode-locked Nd:YAG laser with low repetition rate.The nonlinear absorptive coefficient β=0.59 cm/MW,was obtained for PPQ,in addition,the measured nonlinear refractive index coefficient γ=2.4×10-12 cm2/W was in a good agreement with the previously reported value.
黄金荣, 刘建华, 朱鹤元, 胡谊梅, 孙迭篪, 李富铭, 孙猛. 共轭有机高聚物PPQ薄膜非线性吸收的Z-扫描测量[J]. 中国激光, 2000, 27(12): 1118. 黄金荣, 刘建华, 朱鹤元, 胡谊梅, 孙迭篪, 李富铭, 孙猛. Z-scan Measurement on the Third-order Nonlinear Optical Absorption of Conjugated PPQ Polymer Film[J]. Chinese Journal of Lasers, 2000, 27(12): 1118.
PDF全文
