查询词典 Pulse

Using Nd:YAG laser (with a wavelength of 1064 nm a nd a pulse width of 10 ns) ablate copper target in air to observe the emission spe ctra of plasma.

利用Q-开关Nd：YAG激光器产生的1.06 μm、10 ns的脉冲激光聚焦在空气中的Cu靶上，观测了激光诱导的Cu等离子体发射光谱。

In this thesis, the study results of the basic characteristics of laser-ablation Cu plasma are given, Following are the details, The research of laser induced Cu plasma emission spectra in airUsing Nd:YAG laser (with a wavelength of 1064nm and a pulse width of 10ns) ablate copper target in air to observe the emission spectra of plasma.

本论文采用光谱方法对激光烧蚀产生的Cu等离子体的基本特征进行了实验研究，主要内容有：空气中激光烧蚀Cu产生等离子体发射光谱的研究利用Q-开关Nd∶YAG激光器产生的1.06μm、10ns的脉冲激光聚焦在空气中的Cu靶上，观测了激光诱导的Cu等离子体发射光谱。

Experiments that use single-pulse laser to ablate small steel ball in atmosphere were conducted.

采用单脉冲激光进行了大气环境下激光烧蚀小钢珠实验，得到其推进效应参数，发现并分析了钢珠在不同放置位置时不同的物理现象；为了得到一系列定量实验数据，采用自行研制的激光冲量靶仪进行了单脉冲激光烧蚀推进效应实验测试，得到了不同环境条件、不同靶材料的激光推进效应参数，并与国外的实验数据以及数值计算结果进行了比较。

An Nd:YAG Q-switched laser operating at a wavelength of 266 nm, a pulse duration less than 10 ns, and a repetition rate of 10 Hz, was used to ablate a ZnO target of 99.9% purity.

所使用的光源为Nd：YAG Q-switched雷射，其波长为266 nm、脉冲宽度小於10 ns、重覆频率10 Hz；使用的靶材为纯度99.9％的氧化锌。

Finally, the mechanism of pulse laser ablation for ZnO nanoparticles was also discussed.

最后，对氧化锌纳米颗粒的激光烧蚀机制进行了解释。

Group velocity of the optical pulse propagation would be reduced based on coherent population oscillation effect in an absorbing medium.

由于相干布居振荡效应，光脉冲通过处于吸收状态的掺铒光纤介质时，将导致群速度传输减慢。

At the end of the current pulse, however, the trapstransfer from the absorbing to the nonabsorbing state.

但在电流脉冲终了时，具有特殊性质的陷阱就从吸收状态变成非吸收状态。

The nonlinear absorption and configuration of refractive index changes of fused silica induced by femtosecond laser pulse .

飞秒激光脉冲诱导透明介质的非线性吸收和折射率改变轮廓研究。

Finally, it is our most important chapter which discus the two-level systems which interacted with the Shaping-pulse dynamic progress of the absorption, dispersion and refractive index.

在后面几部分的讨论中就会发现，采用布洛赫矢量方法讨论激光脉冲同系统的相互作用，可以形象直观的从理论上观测到色散和吸收或辐射的动态演化过程，既有利于教学演示，又有助于帮助实验寻求更方便的激光整形方式。

Part: two It gives the shaping-pulse in the time field to achieve the aim of the quantum control and adopts the Bloch vector to analyses the dynamic process of the absorption, dispersion and reflection index.

这项工作的意义在于通过合适的选择调制场可以达到预期的相干控制目的。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。