查询词典 laser material

The metallic nanoparticle-semiconductor composite thin films are considered as the only photoemissive material that can be used to detect the ultrashort laser pulses.

金属纳米粒子／半导体介质复合薄膜在近红外-可见-近紫外波段的选择性光吸收主要由金属纳米粒子体内导带电子的表面等离子激元共振吸收引起。

The nanoparticle composite photoemissive thin film, with ultrafast photoelectric response speed that is more than 10〓 folds faster than normal semiconductor photoemissive materials, is a promising material for detecting super-short laser pulses.

纳米粒子复合光电发射薄膜具有优于目前半导体光电材料三个量级以上的超快飞秒光电响应速度，是可用于检测脉宽短至飞秒的超短激光脉冲的光电材料，在现代光通信朝着超快信息流传输方向发展的形势下有很好的应用前景。

Noncrystal materials ; laser induced self propagating reaction ; exothermic reaction ; bulk amorphous alloy ; composite material ; Zr based alloys

非晶材料；激光诱导自蔓延反应；放热反应；大块非晶合金；复合材料； Zr基合金

It is concluded that the material removal of the process depends mainly on the ablated crater which is made of single pulse of laser and is not influenced by the parameters of the motion of workpiece.

因此，激光烧蚀成形三维表面时主要取决于单个激光脉冲烧蚀材料而形成的凹坑，每个脉冲的作用深度基本上不受切削运动参数的影响。

In order to acquire the heating-cooling process of laser molten pool and the mutual effect of sintering layers in multi-layer powder sintering, factors such as heat conduction, heat radiation, heat convecting and changeable thermophysical property parameters were taken into account comprehensively, the 3D transient state FEM of the temperature field of multi-layer thin-wall metal parts formed by DMLS was established based on ANSYS. The APDL (ANSYS Parametric Design Language) was used to carry out thermal resource moving and the technique of birth/death for element was used to simulate the process of material addition.

为掌握多层粉末烧结过程中激光熔池的加热冷却规律以及各烧结层之间的相互影响，综合考虑热传导、热辐射和热对流以及材料的高度非线性，基于ANSYS平台建立了多层金属薄壁件的三维温度场有限元模型，利用APDIJ语言编程实现模拟中激光热源的移动，采用&单元生死&技术描述粉末材料动态增长过程。

It indicates that the damnification morphology of K9 glass is cleavage damage, the reason of which is that the hoop tensile stress overtops materials'tensile strength. And the materials'damage threshold is inversely proportional to irradiation time.The mathematical model of in-band CW laser irradiating optical material is established.

结果表明：K9玻璃材料的损伤形态为解理破坏，破坏的原因是环向拉伸应力大于材料的抗拉强度，且材料的损伤阈值与辐照时间反向相关，即激光功率密度越高，造成破坏所需的时间越短。

Laser welding can be performed without filler material, due to the interference between the two gears.

本文选择了合理的工艺参数，对材料为20CrMo及20CrNiMo的变速箱齿轮进行了激光焊接。

Chromium oxide ceramic coating has proven to be laser engraving the best roller surface material and the roller surface coating technology is plasma spraying.

氧化铬陶瓷涂布已被证明是激光雕刻网纹辊的最佳表面材料，而网纹辊表面陶瓷涂布的新技术就是等离子喷涂。

The numerical results indicate that the collimating performances of two lens changed little as the increasing of the refractive index and this made it possible to choose the material of the lens in more field.Theoretically,the radiation angle of laser diode beams in the quick axis can be compressed under 0.1 mrad.

结果表明：这两种柱透镜的准直效率随折射率的变化不大，这在一定程度上提高了透镜材料选择的灵活性；并且理论上，共轴双半椭圆柱透镜可以将半导体激光光束快轴方向的发散角压缩到0.1 mrad量级。

By analyzing the characteristic of transition and corresponding stimulated-emission cross section in Nd:YAG crystal, according to the coupling condition of energy transition and material-determined wavelength, reasonable coupling parameters of laser rod and cavity mirrors were designed.

通过分析Nd：YAG的跃迁谱线和相应的受激发射截面的特点，根据多跃迁谱线激光材料波长选择的耦合率条件，合理设计激光棒和腔镜的耦合率参数。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。