third-order nonlinear susceptibility

Theory of the Third-Order Nonlinear Optical Susceptibility in Multilevel Atomic System

多能级原子系统中三阶非线性光学极化率理论

Bismuth triiodide crystal has large value of the third-order nonlinear susceptibility. The material is suitable for the study of the microprocesses of nonlinear optical phenomena.

碘化铋晶体具有大的三阶非线性效应，是研究非线性光学微观过程的最合适的材料。

Unusual large resonant third-order nonlinear optical susceptibility X ( 3) of 6 × 10-3 esu was found in push-pull azobenzenes.

本文报道从推拉型偶氮化合物中测得了非常高的三阶非线性极化率，X~（3）～6×10~（→3）esu。

The third-order nonlinear susceptibility of ga Ilium arsenide under irradiation of CW CO_2 laser

砷化镓晶体在连续CO2激光作用下的三阶非线性系数

Studies of Third-order Nonlinear Optical Susceptibility in InGaN/ GaN Quantum Dot

InGaN/GaN量子点中三阶非线性光学极化率的研究

The measured third-order nonlinear susceptibility of DMSO is about one-quarter of that of CS2 with the CS2 as reference by optical kerr effect experiment. The nonlinear susceptibility of DMSO comes from the nonlinear refraction, namely the real part of third order susceptibility.

用CS2作为参考样品，测量得到了DMSO的三阶非线性极化率幅值约为CS2的四分之一，而且主要来自于非线性折射的贡献，即三阶非线性极化率的实部。

Also we have elaborated the calculation of Raman linewidth, Raman scattering cross section, transitions between energy levels of the particle number density difference that are crucial in the third-order nonlinear susceptibility expressions. 3.

对三阶非线性共振极化率表达式中拉曼线宽、拉曼散射截面及跃迁能级之间的粒子数密度差的计算分别进行了详细讨论。

After further investigation, we have found that the magnetoelectric coupling can also result in the anomaly of the third-order nonlinear dielectric susceptibility, which provides a great deal of important information for us to better understand the relaxor ferroelectricity.

并且经过进一步研究发现，磁电耦合同样会导致三阶介电常数的异常，从而为更好的研究弛豫铁电性提供了很多重要的信息。

The nonlinear absorption coefficient ( B), the nonlinear refractive coefficient ( n2) and the third-order nonlinear susceptibility ( X ( 3)) of three monomers and some polymers were fitted and calculated. The relationship between nonlinear optical properties and molecular structures was discussed.

对它们的非线性吸收和非线性折射进行拟合，计算得到非线性吸收系数β、折射率n以及三阶非线性系数X~（3），并探讨了分子结构和材料性能之间的关系。

Under Quasi-static approximation, based on the non-diluted condition, the analytical expression of the effective dielectric constant and third-order nonlinear susceptibility of granule composite system was obtained in our research.

在准静态近似下，我们推导得出非稀释情况下，颗粒复合体系的有效线性介电常数和有效三阶非线性极化率的解析表达式。

Excited-State Enhancement of the Third-Order Nonlinear Optical Susceptibility of Non-Ether PPQ

聚合物非醚PPQ三阶非线性光学系数的激发态增强

Third-order nonlinear susceptibility x ( 3) (-ω; ω,ω,-ω) is calculated in nearly-degenerate quasi-two-level system by perturbation method.

我们用微扰方法计算了近简并准二能级系统的三阶非线性极化率x~（3）（-ω；ω，ω，-ω）。

Third-order Nonlinear Susceptibility in a nc-Si/ SiO_2 Spherical Quantum Dot

nc-Si/SiO2球形量子点的三阶极化率

Our calculation result demonstrated that the maximum value of optical linear absorption peak and effective third-order nonlinear susceptibility of the system could be achieved simultaneously if appropriate interfacial structure parameters were chosen.

数值计算结果表明，可以选择合适的界面结构参数，使体系的光学线性吸收峰和有效三阶非线性极化率同时达到最大值。

The cubic nonlinear refraction index n2 and the nonlinear absorption coefficient α 2 of the ruthenium(ⅱ) complexes are measured by Z-scan techniques and the third-order nonlinear susceptibility χ( 3), and hyperpolarizability γ of the complexes are calculated.

运用Z-扫描的实验方法研究了钌（Ⅱ）配合物的三阶非线性折射率n22和非线性吸收系数α2，并由此计算出它们的三阶非线性系数χ（3）和分子超极化率γ。