| 1. | Discussion of gain in regeneration amplifier with complex amplitude method 复振幅法在再生放大器增益研究中的应用 |
| 2. | The complex amplitude of cylindrical wave fields in the reference plan vertical to the optical axis 柱面光波场在垂直光轴方向的参考面上的复振幅表示 |
| 3. | We introduced the mechanism of slm ( spatial light modulator ) , and designed a complex amplitude slm 分析了空间光调制器的原理,设计了复输入/输出空间光调制器。 |
| 4. | Calculating the complex amplitude in a coupled bay - river system is another fluid dynamics problem coming from engineering application 耦合海湾?河流系统中复值波幅的求解是另一个从实际问题中得到的流体力学问题。 |
| 5. | Despite of those differences , their basic things are the same : through modifying the length and orientations of crystals to modulate the input beam so as to realize certain kind of complex amplitude distribution 但它们最根本的东西同出一辙:通过改变晶体的厚度和取向参数,对入射光进行调制,实现一定的目标复振幅分布。 |
| 6. | ( 2 ) based on the theory of diffraction , we push over the fraunhofer and fresnel diffraction of obscuration . moreover , the distribution of complex amplitude is given , and the rule is validated by the optical propagation software researched by caep 二、根据单缝衍射理论推导散射点的夫琅和费和菲涅耳衍射规律,分别给出了散射点的夫琅和费和菲涅耳衍射的复振幅分布情况。 |
| 7. | Porras and fu et al proposed that slowly varying envelope approximation and the complex amplitude envelope do n ' t fit anymore for the ultrashort pulsed beam shorter than or even near to one oscillation optical period , because they lead to a spatial singularity 结果表明,对于脉冲宽度较长(相对于一个光学周期)的超短无啁啾脉冲光束可以使用缓变包络近似和复振幅包络表达式。 |
| 8. | An extended hyperbolic mild - slope equation , which can take such terms as wind input , bottom friction and nonlinearity of wave into account , here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude . it became a complete wave model when integrated with corresponding physical and imaginary ( open ) boundaries , and can be solved through the improved crank - nicholson or the well known alternating direction implicit ( adi ) difference method , both of which can accelerate the convergent speed , expand limitation of the mathematical method and improve the quality of the solution 本文基于综合考虑底摩阻、风能输入及非线性影响的推广双曲型缓坡方程,将其进行转换,产生一个演变方程,其复振幅控制方程为抛物线性,并采用adi差分格式、改进的crank - nicholson格式及相应的物理和虚拟(开)边界条件进行求解,以提高数值模拟的适用性、数值计算的稳定性、收敛速度及精度。 |
| 9. | In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot , based on the fraunhofer formula for light wave scaler diffraction theory , according to the definition of first order moment centroid position , the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived 摘要为分析振幅和相位发生畸变情况下光束焦斑质心位置所受的影响,以光波标量衍射理论中的夫琅和费衍射公式为基础,根据光斑强度分布一阶矩质心位置的定义,推导了直接依赖于光束近场复振幅分布的焦斑质心位置的一般表达式。 |