晶体

The detector consists of two layers of LSO crystals and a position sensitive photomultiplier tube .

这个探测器是由两层氧正硅酸镥晶体晶体和位置灵敏型光电倍增管组成。

On the basis of the perturbation formulae of the g-factors (fourth-order) and the hyperfine structure constants (third-order) for a 3d^9 ion in tetragonal symmetry, the spin Hamiltonian parameters for the Cu(superscript 2+)-doped LaSrAlO4 crystal are theoretically investigated.

根据晶体场理论，利用3d^9离子在四角对称中自旋哈密顿参量g因子的四阶微扰公式以及超精细结构常数A因子的三阶微扰公式，对掺Cu(上标 2+)的LaSrAlO4晶体的自旋哈密顿参量作出了理论分析。

On the basis of the perturbation formulae of the g-factors (fourth-order) and the hyperfine structure constants (third-order) for a 3d9 ion in tetragonal symmetry, the spin Hamiltonian parameters for the Cu2+-doped LaSrAlO4 crystal are theoretically investigated.

根据晶体场理论，利用3d9离子在四角对称中自旋哈密顿参量g因子的四阶微扰公式以及超精细结构常数A因子的三阶微扰公式，对掺Cu2+的LaSrAlO4晶体的自旋哈密顿参量作出了理论分析。

The ability to tune the shape of inorganic crystals is of extraordinary importance because their electronic structure, bonding, surface energy, and chemical reactivities are directly related to their surface morphology.

对无机晶体，形貌的调节尤为重要，因为无机晶体的电子结构，化学健，表面能，化学反应都直接与它们的形貌有关。

In Chapter 1, following the history of PhCs research on the dispersion characteristic, we introduce two important concepts involved in the thesis: negative refractions and designed surface plasmons.

第一章，我们首先引入光子晶体的概念，然后以时间为线索重点介绍了光子晶体色散方面的研究状况，主要包括负折射现象和人造表面等离子体波。

In Chapter 3, a comprehensive analysis of the coupling coefficients between plane waves in conventional dielectric media and Bloch waves in photonic crystals with effective negative refractions is performed by the layer-KKR method.

第三章，我们运用layer-KKR方法计算得到平面波与半无限负折射光子晶体中Bloch波的耦合效率，从而可以将介质-等效负折射率光子晶体的透射率与介质-负折射率介质的透射率进行系统的比较。

The vibrational spectra of CBO CLBO and LBO were compared, and the effect of cation on the vibrational spectra was discussed. In addition, the relationship between the LO-TO splittings and their nonlinear optical efficiency was analyzed simply.

比较了CBO，CLBO和LBO晶体的晶格振动光谱，讨论了阳离子对振动谱线的影响；分析了晶格振动模横纵频率的分裂程度与晶体非线性光学系数之间的关系。

Thirdly, we employ the air-core PCF structure to overcome the shortage of high material absorption loss of plastics. So mostly light wave can propagate in air core once the light frequency falling in the bandgap band.

再次，本文针对塑料光纤材料吸收损耗过大这一缺点，把塑料作为空芯光子晶体光纤的基质，制成空芯塑料光子晶体光纤并使传输光频落在带隙内，这样一来，就能让大部分光在空气芯中传输。

Test results showed that added≤2% BaO in test mould powder was available to improve lubricant and vitreous performance of flux and restraine precipitation of crystals, and as BaO content was≥4%, the precipitation of cryst...

试验结果表明，在实验渣中加入≤2％BaO，可有效地改善保护渣的润滑性能，抑制晶体析出，改善熔渣的玻璃性能；BaO含量≥4％时，完全抑制晶体析出，得到良好的玻璃态渣膜。

A novel method to realize a highly nonlinear photonic crystal fiber is reported. In this method, the core of the hollow core-PCF is filled with highly nonlinear liquids, such as carbon disulfide, chloroform and methylbenzene.

提出了一种实现高非线性光子晶体光纤的新方法，即在空芯光子晶体光纤的纤芯空气孔中填充高折射率、高非线性折射率的液态物质三氯甲烷、甲苯、二硫化碳等。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。