查询词典 laser

Meanwhile the driving-laser and the photocathode are also important factors, the output of the driving laser can directly affect the quality of electron beam.

同时，驱动激光器的参数、阴极材料的选择和制备工艺也直接影响该注入器电子束的品质。

A method of etching Micro-Grating Structures by ablating nickel plate was studied,which makes use of the interference laser of 351 nm diode-pumped solid-state laser pulses.

利用波长为351 nm的半导体抽运全固态脉冲激光器，采用双光束干涉方法，对金属镍板表面直接刻蚀形成微光栅结构的方法进行了实验研究。

It indicates that the theory of monoatomic layer can't explain perfectly emission mechanism of La2O3-Mo cathode;the excess active lanthanum is crucial element to the improvement of thermionic emission.

标 签 激光技术热电子发射发射机制脉冲激光沉积薄膜 laser technique thermionic emission emission mechanism pulse laser deposition thin film

In the laser processing technology, as for the laser punch, the key of the high accuracy punch is making the regular sequence pulse.

摘 要：在激光加工技术中，就激光打孔而言，制造出规则的序列脉冲是进行高精度打孔的关键。

At present, laser process technology develops fast, since a laser light can obtain many good characteristics such as good direction, high energy density to focus the beam at a micrometer level, small pulse width ranging from dozens of Nanoseconds to dozens of Picoseconds, heating material immediately, decreasing heat effect on materials and so on.

由于激光束具有良好的方向性和高能量密度，可将光束聚焦到微米量级；由于激光束的脉冲宽度可达数十纳秒到数十皮秒，能够快速加热，对材料的热影响效应减小；因此，激光的以上优点为微加工提供了有利的条件，同时也促使激光加工技术迅速发展。

The diode laser at 657 nm has the characteristics of lower cost and higher power than that at 633 nm. Therefore, we use the 657 nm ECDL to investigate the saturation spectrum of the hyperfine structure components of P(84) 5-5 transition of 127I2 at 657.483 nm for frequency stabilization of our ECDL laser.

nm 波段的二极体雷射比起633 nm 波段的二极体雷射拥有较低的费用和较高的功率，因此，我们使用657 nm 波段的外腔二极体雷射来研究657.483 nm 波段之碘分子跃迁P(84 5-5 transition of 127I2，并将我们的外腔二极体雷射稳频在此跃迁的超精细结构成分上。

Methods Ten New Zealand rabbits bearing VX2 kidney tumors were irradiated by Ho:YAG laser with certain parameter in vivo. The vaporized incision, coagulation, haemostatic effect and pathologic alteration of laser to tumor tissues were observed and measured.

制作兔的肾VX2肿瘤模型，超声影像学技术初步评估肿瘤组织的大小，在手术直视下，应用不同的钬激光照射参数，对肿瘤组织进行照射。

Melcer et al. first described laser treatment of exposed pulp tissues using the CO2 laser in dogs to achieve haemostasis; Ebihara et al.

Melcer等使用CO2激光，将狗的暴露牙髓组织止血，这是首例激光止血治疗的报道。

In the scheme the ion is excited by two laser fields tuned to the first lower and higher vibrational sidebands, and then by one laser tuned to the ion transition in an alternative way.

在本方案中，这个离子受到两个分别调到第一高、低振动边带的激光场和一个与离子共振的激光场的轮流激发。

The nonlinear laser beam propagation in high power laser driver and the influence of the smallscale selffocusing and phase noise on beam quality in disk amplifier have been analyzed by a linear model.

建立了一套线性的近似分析方法，研究高功率激光驱动器中强激光传输的小尺度自聚焦效应和相位噪声对光束传输和光束质量的影响，给出了系统噪声强度、B积分值与光束近场调制对比度之间的定量关系。

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。