Third-order nonlinear susceptibility spectra of CuO chain compounds investigated by the Z -scan method
Third-order nonlinear susceptibility spectra of CuO chain compounds investigated by the Z -scan method
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DOI：
10.1103/physrevb.70.125117
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发表时间：
2004-09
影响因子：
3.7
通讯作者：
A. Maeda;M. Ono;H. Kishida;T. Manako;A. Sawa;M. Kawasaki;Y. Tokura;H. Okamoto
中科院分区：
文献类型：
--
作者：
A. Maeda;M. Ono;H. Kishida;T. Manako;A. Sawa;M. Kawasaki;Y. Tokura;H. Okamoto
用扫描法测量了链状化合物的双光子吸收光谱。的最大值相当大，达到。一个简单的三能级模型可以解释的绝对值和光谱形状，一致的和先前获得的三次谐波产生和电反射光谱，分别。考虑到激子效应和电子结构的维数，讨论了它与另一种链状化合物和二维铜酸盐在光谱上的差异。
We measured thespectrum associated with two-photon absorption in the-chain compoundusing the-scan method. The maximum value ofis fairly large, reaching. A simple three-level model can explain both the absolute value and spectral shape of, consistently with those ofandpreviously obtained by third harmonic generation and electroreflectance spectroscopy, respectively. The difference in thespectra betweenand another-chain compoundand a two-dimensional cuprateis discussed considering excitonic effect and dimensionality of electronic structures.