本文描述一个线性变化电压非线性系数的测量方法。
This paper describes a method of determining the non-linear coefficient of linear varying voltage.
透射谱显示非线性系数对波的透射有明显的调制作用。
The transmission spectrum shows that the nonlinear coefficient has a distinctive modulation effect on the transmission coefficient.
计算并分析了离散角对有效二阶非线性系数和倍频效率的影响。
The influences of walk-off Angle on effective second-order nonlinear coefficient and SHG efficiency were also analyzed.
数值计算得到非线性系数不同、以及透射波幅不同时的映射图。
The maps for different nonlinear parameters and different transmitted intensity are achieved by calculation.
采用全矢量有限元法,对其色散和非线性系数进行了数值模拟。
Its dispersion and nonlinearity coefficient are investigated simultaneously by using full vectorial finite element method.
当预啁啾与五阶非线性系数同(异)号时,总啁啾增加(减小)。
When the initial chirp of the pulse is of same (opposite) sign as that of quintic nonlinearity coefficient, the whole chirp increases (decreases).
倍频晶体选择了非线性系数相对较大、允许角相对较宽的LBO晶体。
With relative high secondary harmonic generation coefficient and wide acceptance Angle, LBO crystal is chosen as the most suitable secondary harmonic generation crystal for blue lasers.
有机高聚物是一种具有较大非线性系数和较快非线性响应时间的非线性材料。
Organic polymers are attractive nonlinear materials because of their both large nonlinear coefficient and ultrafast response time.
由于向列相液晶大的非线性系数,使得利用向列相液晶产生光学相位共轭波称为可能。
Nematic liquid crystal has a large non-linear coefficient, so it is possible to produce optical phase conjugation (OPC) wave in right condition.
参数研究表明非线性系数的变化对正交各向异性板的影响较大,而对准各向同性板的影响较少。
The parametric study manifests that the variance of nonlinearity coefficient has more serious effect on orthotropic plate than on quasi-isotropic plate.
此外,其较大的介电损耗、较低的压敏电压以及较小的宏观I-V非线性系数限制了其实用化。
On the other hand, the main problems for the application of CCTO are its high dielectric loss, low breakdown voltage and compatively small I-V nonlinear coefficient.
通过系统仿真,得到色散参量的变化对拉曼放大器的性能影响较大,而非线性系数对其影响较小。
The simulation results show that dispersion has great impact on the performance of fiber Raman amplifiers, while nonlinearity makes little influence on them.
分析也表明,利用聚焦的几何排布测量材料的非线性系数,具有比常规Z扫描方法更高的灵敏度。
Meanwhile, the analysis also shows that the sensitivity of Z scan technique with the focused optical system is higher than that of common Z scan technique.
数值算例证实了此方法的正确性,计算表明非线性系数的识别精度与非线性程度和初始振幅大小有关。
It is also shown that the identification accuracy for the nonlinear parameter depends on the degree of nonlinearity and the initial amplitude.
理论和实验研究表明,参量放大的带宽取决于泵浦波长和泵浦功率、光纤非线性系数、光纤的色散特性。
Theory and experiment show that bandwidth of FOPA depends on pumping wavelength and pumping power, optical fiber nonlinear coefficient as well as dispersion characteristics.
本文介绍计算双轴晶体二阶有效非线性系数的严格理论,适用于双轴晶体非线性光学频率变换器件的设计。
We present an accurate route, which is suitable for the design of nonlinear optical frequency translator of biaxial crystals, to calculate the effective second-order nonlinear coefficients.
本文以偏硼酸钡晶体为例,分析了三个光波的二阶非线性相互作用,并推导单轴晶体的有效非线性系数的表达式。
The second order nonlinear optical effects on the three-wave is analyzed, and the nonlinear optical coefficient of the uniaxial crystal is deduced from an example of the BBO.
详细研究了光纤参量放大系统中的增益和带宽与各主要参数如光纤长度、色散斜率、非线性系数、泵浦光功率等的关系。
Some parameters such as fiber length, dispersion slope, nonlinearity coefficient, and pump power have important impact on gain and bandwidth in optical fiber amplification system.
对BBO晶体的材料特性,有效非线性系数,以及BBO晶体的走离角与空间走离效应,群速度失配与时间走离效应进行了讨论。
The properties of nonlinear crystal BBO is presented. The walk-off Angle and the spatial walk-off effect, the group velocity mismatch and the temporal walk-off effect are discussed.
得到了非线性系数以及特征长度和预倾角的关系,并且给出了强非局域性的非线性薛定谔方程,最终得到了单孤子和临界功率的解析解。
Then the Schrdinger-type nonlinear equation in strong nonlocality was given and from the equation the analytical expressions of the single soliton and the critical power .
现代控制理论的状态变量法提供了一种统一、高效的方法来描述具有任意阶次、线性或非线性、时变或常系数的各种系统。
The state variable approach of modern control theory provides a uniform and powerful method of representing systems of arbitrary order, linear or nonlinear, with time-varying or constant coefficients.
结果表明:二苯胺双席夫碱类化合物具有较大的非线性光学系数,从理论上为进一步探索优质非线性光学材料提供依据。
The result showed that two - aniline - two schiffs bases has bigger nonlinear optical coefficient. It provides the theory foundation for go further research on good nonlinear optical materials.
而且为了保持图像特征,利用图像的方向导数局部地调整非线性扩散系数。
To preserve image features, the nonlinear diffusion coefficients are locally adjusted according to the directional derivatives of the image.
提出了能量衰减函数的概念,并由实际能量衰减函数与估算能量衰减函数之间的方差最小来确定非线性阻尼系数。
The concept of roll energy decay function is put forward, and the nonlinear damping coefficients are solved based on the minor error between actual energy function and evaluated energy function.
考虑到离散角的影响,给出了单轴晶体中有效非线性极化系数的精确计算公式,并给出了计算举例。
Considering the effect of walk-off Angle, the accurate calculation of effective nonlinear optical coefficient of uniaxial crystal is presented, a example of calculation of BBO is given.
第二部分是金属酞菁衍生物的二阶非线性光学系数的测定。
The second part reports the estimation of organic second-order nonlinear optical coefficient of the metal-phthalocyanine derivatives.
同时得到了分解系数和非线性项界限的估计公式。
At the same time, the decomposition coefficients and the nonlinear terms are given respectively.
最后,分析了线性和非线性刚度系数对颤振响应拓扑结构的影响。
Finally, the influences of the linear and non-linear stiffness coefficients on the topological structure of flutter responses were analyzed.
分析表明这类桥的非线性影响系数可达15%左右。
The analysis shows that the nonlinear influence factors of this kind of bridges may reach about 15%.
不论刚体气动力为线性还是非线性,气动力系数随动压变化的趋势均呈线性。
The aerodynamic coefficient varies with dynamic pressures always linearly, no matter what a rigid aerodynamic force may be linear or non-linear.
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