查询词典 tunable

Abasic review on dielectric nonlinearity and electric tunable mechanism wasperformed in view of thermodynamics, ferroelectric domain, polar nanoregion,field induced phase transition, grain boundary layer and AC dielectricnonlinearity. The dielectric nonlinearity phenomena in barium stannate titanateceramics were studied and the field dependences of dielectric constant and losstangent were showed.

关于低温介电弛豫行为与极性微区关系的讨论涉及到了弛豫铁电体与扩散相变铁电体之间的相容关系，作者认为所有的扩散相变铁电体都应该是弛豫铁电体或潜在的弛豫铁电体，它们的区别仅在于能够观测到介电弛豫现象的测试频率范围不同。

A TeO_2 acousto-optic tunable filterwith large angular apert- ure is described.

本文描述了用 TeO_2 晶体制作的大角孔径声光可调滤光器。

Then we obtain the astigmatically compensated angle and the best mode-matching conditions. After that, the characteristics of continuous-wave tunable Cr~(4+):YAG laser have been studied in experiments and more than 580mw continuous-wave power is obtained.

利用克尔介质的非线性ABCD传输矩阵公式，分析克尔透镜锁模灵敏度δ在KLM激光器中的重要作用及其与谐振腔参数之间的关系，并结合我们实验中所用的四镜像散补偿腔，得到了有利于锁模产生的参数范围。

Novel ZnSe nanosheets with tunable size and phase have been facilely synthesized via hydrothermal routes in the presence of neutral butylamine as structure-directing agent and ethylene diamine tetraacetic acid as stabilizer.

以乙二胺四乙酸为稳定剂、丁胺为结构导向模板，采用水热合成方法制备了尺寸和晶型可控的ZnSe纳米片晶；利用XRD，TEM，SEM以及紫外-可见漫反射等手段对所得的产物进了表征，结果表明，通过改变水热温度和BA用量，可以实现ZnSe纳米片晶的大小和物相的调控，并初步分析了其形成过程

A new dynamic model is developed for simulating the widely tunable grating assisted codirectional coupler with rear sampled grating reflector lasers.

提出了一个新的分析模型，用于宽带可调谐GCSR激光器的动态特性模拟。

We propose and analyze an experimental scheme for studying the self-scanning effects of Ce: BaTiO〓 phase conjugator. Then we propose a tunable experimental scheme for P567 laser output using self-scanning effect.

提出了研究Ce：BaTiO〓自扫描特性的实验方案，设计并讨论了利用自扫描效应进行固态P567激光调谐的实现方案。

Ie the magnetoelectric coupling effect. Such layered hybrid structures can be potentially and widely employed to fabricate tunable microwave devices of magnetical and electrical dual tunanlities.

可以利用此复合结构制作具有磁电调、电可调双重可调特性的微波器件，拥有潜在而广阔的应用前景。

We establish measurement twice on micro shift for testing superprism effect. And the "thin film gratings" measurement, which we adopt finally, has critically tunable monochroic system, collimated system and exact system for spot detection, realizing detect the micrometer-level shift of reflective and transmissive spots with high sensitivity and precision, and is useful for studies on dispersive device with high resolution.

为了更好地对超棱镜效应进行测试，本文先后两次搭建了微位移测试平台，尤其是最后采用的&光学薄膜光栅&超色散测试系统，采用精密可调的单色系统、小光束准直系统以及精密光斑位置检测系统，实现高灵敏度、高精度的反射光斑及透射光斑的位置检测，为超分辨色散器件的研究奠定了基础。

Fast and widely tunable OPA have been investigated by employing QPM technique and noncollinear geometry in PPLN crystal.

利用周期性极化晶体PPLN，研究了使用准相位匹配技术和非共线几何结构的宽范围高速OPA波长调谐。

A kind of tunable frequency-selective converter based on nondegenerate four-wave mixing in semiconductor laser amplifier is proposed in this paper.

庞叔鸣 ，崔一平，蒋雁提出了一种可调谐选频变频器，利用半导体光放大器中的非简并四波混频过程实现波长转换。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。