散射

optical fiber coupler, scattering matrix ; output phase difference; Hermite quadratic form ; positive definite matrix

利用其散射矩阵为酉矩阵的么正性不难证明，2×2耦合器输出相位差恒为90°，与输出功率比无关，而耦合区具有旋转对称结构的3×3耦合器的输出相位差完全取决于输出功率比，特殊地，当等分功率输出时，输出

And the calculation results are compared with experiments. The importance of exchange potential in the scattering process is given for the first time.

首次提出了交换效应在散射过程中的重要性，并从计算结果得出了以下结论：光学势模型能够较好地描述激光场中原子势场。

Also, optical dipole potential and photon scattering rate of the trapped cold atoms were calculated.

同时还计算了光学双阱囚禁冷原子的光学偶极势和光子散射速率。

The reconstruction of scattering potential of one-dimensional Schrodinger equation is studied.

本文研究一维Schrodinger方程散射位势的重建。

Weakly coupled Bose-Einstein subjected to the double-well potential with time-dependent atomic scattering length is studied in this paper.

研究了双势阱束缚下具有含时原子散射长度的弱耦合BEC系统。

The acoustic phonon deformation potential scattering is also important at lower temperatures.

温度较低时，声学波压电散射对电子迁移率的影响较大。

A variational formulation is constructed from the famous Gelfand-Levitan equation to reconstruct the scattering potential.

从著名的Gel＇fandLevitan方程出发，本文构造了一个重建散射位势的变分公式。

Based on the interactions of neutron and matters, we calculate the neutron index either from the standpoint of wave or classical particle mechanics as the scattering amplitude can be easily related to the actual potential well producing the scattering.

基于中子与物质相互作用的机理，考虑到实际应用的低能中子的特性以及中子的波粒二相性，从量子力学的角度出发，得出了物质的散射长度和吸收截面与材料对中子的折射率之间的关系。

SEM, dynamic light scattering, zeta potential analyzer, ultraviolet spectrophotometer and antithrombogenicity are used to characterize the microcapsules.

采用荧光倒置显微镜、SEM、动态光散射仪、Zeta电位仪和抗凝血仪等进行表征。

While deriving the effective potential by calculating the elastic scattering amplitude between quark-antiquark,one would encounter the ordering problem.

由动量空间计算得到的夸克和反夸克之间的散射振幅推导坐标空间等效势时，总要出现算符排序问题，这是一个量子力学中长期存在而又未能得到很好解决的重要问题。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。