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nonlinear susceptibility     
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  非线性极化率
     The nonlinear optical properties of the films were determined by a single beam Z-scan. The values of the real and imaginary parts of the third-order nonlinear susceptibility X(3) were measured to be 3. 78 × 10-9esu and 1. 02×10-9esu.
     用单光束Z扫描技术测得了该薄膜的三阶非线性光学性质,其三阶非线性极化率的实部ReX(3)=3.78×10-9esu,虚部IeX(3)=1.02×10-9 esu。
     The third order nonlinear susceptibility of the glass doped with PbS microcrystals was characterized by Z -scan method, and the measured χ (3) is 1.1×10 -11 esu.
     此种玻璃的三阶非线性极化率 χ( 3) 为 1 .1×1 0 - 11esu .
短句来源
     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)。
短句来源
     The first component is assumed to be nonlinear and obeys the nonlinear current (Ⅰ)-voltage (Ⅴ) characteristic of form formula I=g 1V+χ 1Vβ, while the second component is linear with I=g 2V, where g 1 and g 2 are linear conductance of constituents and χ 1 is the nonlinear susceptibility and β is nonlinear exponent.
     考虑第一组份为非线性材料 ,其电流、电压间服从I=g1V +χ1Vβ 关系 ; 而第二组份为线性材料 ,电流、电压间满足I=g2 V ,其中g1,χ1是第一组份的线性电导和光学非线性极化率 ,g2 是第二组份的线性电导 ,β是第一组份材料的光学非线性指数。
短句来源
     The Second-Order Nonlinear Susceptibility in Semiconductor Asymmetric Step Quantum Well Structure
     半导体非对称阶梯量子阱结构的二阶非线性极化率
短句来源
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  非线性系数
     The third-order nonlinear susceptibility is estimated to be as large as 5.1xlO"13esu at 820nm in sample 0.6GeS2-0.3In2S3-0.1CsI by femtosecond time-resolved optical Kerr gate technique. The response of Kerr signal is dominantly assigned to the ultrafast distortion of the electron cloud.
     通过超快飞秒时间分辨光克尔门技术探测了样品0.6GeS_2·0.3In_2S_3·0.1CsI在820nm处的超快三阶非线性性能(三阶非线性系数为5.1×10~(13)esu),光克尔信号的响应主要归属于电子云的扭曲。
短句来源
     The cubic nonlinear refraction index n2 and the nonlinear absorption coefficient α2 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.
短句来源
     The two\|photon optical nonlinearities of the GaSb\|SiO 2 composite thin films at 632.8 nm were measured by Z\|scan method,and the results are:two\|photon absorption coefficient β ≈0.082 m/W,nonlinear refractive index γ ≈3.76×10 -9 m 2/W and the nonlinear susceptibility χ (3) ≈7.84×10 -9 esu.
     用Z扫描方法测量了复合薄膜在 63 2 8nm处大的双光子吸收系数 β≈ 0 0 82m W ,非线性折射率γ≈ 3 76× 10 - 9m2 W及非线性系数 χ( 3) ≈ 7 84× 10 - 9esu .
短句来源
     The third-order nonlinear susceptibility of ga Ilium arsenide under irradiation of CW CO_2 laser
     砷化镓晶体在连续CO_2激光作用下的三阶非线性系数
短句来源
     The 3rd-order nonlinear susceptibility χ~((3)) were measured with the four-wave mixing technique. The measured χ~((3)) were 5.4×10~(-10) and 1.8×10~(-10) esu respectively.
     用简并四波混频实验测量ADMAA和AHA的三阶非线性系数分别为5 4×10-10和1 8×10-10esu。
短句来源
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  非线性极化
     Investigations on dependence of SHG with glass composition, structure and poling conditions indicate that the SHG intensity have tight relation with poling conditions. Under the poling condition conducted with 5kV, 280°C and 30min, the maximum of second-order nonlinear susceptibility x~((2)) =4.36pm/V for 70GeS_2·15Ga_2S_3-15CdS glass.
     二阶非线性光学效应与组成、结构及极化条件相关性研究结果表明,SHG的强弱与极化条件密切相关,在5kV、280℃、30分钟的极化条件下,70GeS_2·15Ga_2S_3·15CdS玻璃的二阶非线性极化系数x~((2))达到最大值4.36pm/V;
短句来源
     When the LASER frequency is close to the molecular resonance frequency, thesecond-order nonlinear susceptibility becomes larger, before and after the resonancefreguence, β_(ijk) changes its sign and the Kleinman symmetry begins to break down.
     当激光场频率与分子的共振频率接近时,二阶非线性极化系数变得非常大,在共振频率附近,βijk改变符号且Kleinman对称性被打破。
短句来源
     The off-resonant third-order nonlinear susceptibility is observed to be 1.0×10-10 esu at 800nm. The relaxation time of the optical nonlinearity in the films is as short as 60fs.
     得到薄膜非共振三阶非线性极化系数为1·0×10-10esu,弛豫时间为60fs.
短句来源
     We present the two photon optical nonlinearities of C60 thin film at 633 nm. Large two photon absorption coefficient  ̄ 5.4 cm/W was measured by Z-scan method,the real and the imaginary part of the resonant nonlinear susceptibility X(3) was calculated.
     我们用Z-扫描方法测量了C60薄膜在633nm处大的双光子吸收系数β≈5.4cm/W,并由此计算了C6O薄膜双光子共振三阶非线性极化系数的实部和虚部。
短句来源
     The third order optical nonlinearities of SnO 2 nanoparticles were studied in a nonresonant region by Z scan technique with 18 ns, 0.53 μm pulses from a Q switched Nd∶YAG laser. The sign and magnitude of the third order nonlinear susceptibility χ (3)  and two photon absorption coefficient β, et al. , of SnO 2 nanoparticles with different size were obtained.
     利用Z-扫描技术,以调QNdYAG激光器作光源(脉宽18ns,波长为0.53μm),首次在非共振区域研究了SnO2纳米微粒的三阶非线性光学性质,获得了三阶非线性极化系数χ(3)与双光子吸收系数β等重要数据,并对其非线性响应机制进行了探讨
短句来源
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  非线性光学极化率
     The bacteriorhodopsin Langmuir-Blodgett multilayer film's third-order nonlinear susceptibility((3) was measured at the wavelength of 400nm and 800nm.It was 2.5×10~-~9 esu at 800nm and 1.1×10~-~8esu at 400nm,respectively.It shows that the bacteriorhodopsin Langmuir-Blodgett multilayer film has a high third-order nonlinear optical properties just as the bacteriorhodopsin.
     在800nm处,它的三阶非线性光学极化率为10-9esu,而在400nm处为10-8esu。 这表明菌紫质LB膜在非线性光学器件方面具有潜在的应用前景。
短句来源

 

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      nonlinear susceptibility
    It has been shown that relatively high levels of third-order nonlinear susceptibility of polymers can be obtained without the use of highly conjugated systems.
          
    Divergence of the nonlinear susceptibility indicative of the phase transition is established.
          
    Nonlinear susceptibility of nonsymmetric quantum systems
          
    The results are compared with a theoretical calculation on the assumption that the nonlinear susceptibility is caused by the nonparabolicity of the conduction bands.
          
    We show that in the thermodynamic limit the irreducible part of the nth-order nonlinear susceptibility indicates that the eigenstates of the system contain entangled (n + 1)-qubit clusters.
          
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    An electrostatic three-center model with four parameters _m,q,△E and fordiatomic bonds was proposed,based on Hellmann-Feyniman theorem with someadditional assumptions.Equations relating these four parameters with the effectivenuclear charges and covalent radii of the atoms were derived.Molecular properties suchas dipole moment,force constant,field gradient at the nucleus and nonlinear susceptibility can be calculated in terms of these parameters.The results of calculation arebasical in agreement with experimental...

    An electrostatic three-center model with four parameters _m,q,△E and fordiatomic bonds was proposed,based on Hellmann-Feyniman theorem with someadditional assumptions.Equations relating these four parameters with the effectivenuclear charges and covalent radii of the atoms were derived.Molecular properties suchas dipole moment,force constant,field gradient at the nucleus and nonlinear susceptibility can be calculated in terms of these parameters.The results of calculation arebasical in agreement with experimental values.

    本文提出了一个双原子键的三中心静电模型,并导出了支撑这个模型的有效键电荷等四个物理参量表达式,从而提供了一个定量研究一些物理化学现象的半经验方法.文中还利用这个方法导出了键矩、力常数、场梯度、晶体的非线性光学系数等重要物理量的理论公式.在不用可调整参数下所得各物理量的计算值同实测值基本相符.

    In this paper, a theoretical method is presented to calculate the third order optical susceptibility which is induced by the saturation effect of light absorption near exeiton lines. In particular, the numerical results of the nonlinear susceptibility are given in both exeiton lines of GaAs and exeiton lines of the yellow series of Cu2O.

    本文计算了在激子谱线近傍,由于激子谱线的吸收饱和而引起的三阶非线性光学系数,并具体估计了GaAs的激子谱线和Cu_2O的黄系激子谱线的情况。

    We have discussed the polarization rotation of degenerate four-wave mixing in the external magnetic field. The third-order nonlinear susceptibility xyxxx(3) is calculated in the Jg=0→Je=l transition. It consists of two components. The first component is due to the saturation effect of the population difference. The second component is due to the Zeeman coherence induced in the interaction between atom and field.

    本文讨论了磁场中简并四波混频的偏振旋转效应。计算了J_g=0→J_e=1跃迁的三阶非线性极化率X_(yxx)~((3))。它包括两个部分:一部分是由于布居差的饱和效应产生的;另一部分是由于原子与光场的相互作用中,感生出来的塞曼相干所造成的。

     
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