查询词典 laser

The results show that under the action of the ponderomotive force of the coupling laser, there are a larger divergence of the density profile of the electron and ion in the laser-plasma than that without Compton scattering, the faster change of the electron density than the ion density, and the stronger electrostatic field than that without Compton scattering.

研究发现，在耦合激光的有质动力作用下，电子密度分布和离子密度分布比Compton散射前的偏离更加严重，电子密度的变化比离子密度的变化更快，产生的静电场更强。

The electrons in the pre-plasma are accelerated by the ponderomotive force of propagating laser pulse, and the dependences of the maximum electron energy on the laser intensity and the pre-plasma density are examined.

当激光脉冲与靶直接作用时，靶中的电子由于J×B机制而得到加速，所获得的能量比预等离子体中电子低。

Because more control can be obtained via binary pixelated arrays of metal pixels, as used on the National Ignition Facility to precompensate for the spatial gain variation of large glass amplifiers, we intend to adopt the binary mask method to spatially shape the Gaussian laser beam in "ShenGuang II" laser driver system.

结合目前神光II的工程需求，我们拟采用美国劳伦兹·利弗莫尔国家实验室在国家点火装置中使用振幅型二元光学面板技术，将高功率激光驱动器预放系统输出的光束按照具体需求进行精确整形。

We accomplished the theory and system researches of laser range finding by self-mixing effect in a single mode VCSEL,designed the optics and signal processing circuit for the system and builded the protype of the single mode VCSEL laser range finder;We analyzed various factors influencing the system key parameters in theory and experiment,such as ranging accuracy and dynamic range,etc.

完成了单模VCSEL自混合测距的原理与系统研究；设计了系统的光学和信号处理电路，搭建了单模VCSEL自混合测距系统原型样机；从理论和实验上对影响系统测距精度和动态范围等重要参数的各种因素进行了深入分析研究。

For laser use in pulp capping and pulpotomy, an appropriate parameter must be selected. If the laser energy is too strong, the treatment will be unsuccessful.

为了能使激光应用于盖髓术和切髓术，必须选择合适的参数，因为如果激光能量太强，治疗就不会成功。

Methods 230 cases of lacrimal duct obstruction with chronic dacryocystitis divided randomly into two groups.90 cases in group 1 were given operation of laser assisted dacryocytoplasty combining local drug remedy after dashing out the pyoid secretion at once,140 cases in group 2 were not only dashed out the pyoid secretion but also given antibacterial drug, then given operation of laser assisted dacryocytoplasty combining local drug remedy after inflammation was stable. All cases were callback after a week, and followed up more than 6 months.

方法随机选择230名患有慢性泪囊炎泪道阻塞的患者分为两组。1组90名患者冲出脓性分泌物后马上行泪道激光手术联合局部药物治疗，2组140名患者不仅冲出脓性分泌物，且加强抗感染，炎症稳定后再行泪道激光手术联合局部药物治疗，一周后复查，观察两组疗效，追踪半年以上。

Due to this characteristic, UPL materials show extensively applications in short-wave laser, three-dimensional display, IR radialization detection, laser anti-counterfeiting brand, biology fluorescent label and so on.

上转换材料所具有的这一性质使其在短波长激光器、三维立体显示、红外辐射探测、激光防伪和生物荧光标记等领域具有广泛应用。

The laser diode system is composed of three external cavity diode lasers and four injection diode lasers and a tapered amplifier. Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

The laser measuring system possesses simple process, low cost, evident and accurate detection resuit and can be widely used in laser production and detection.

该激光测试系统工艺简单，价格低廉，检测结果直观、明确，测试精确度高，可广泛应用于中小功率激光器的生产、检测和使用。

The carbonyl group tend to align in the direction of the electric field of the polarized laser, resultantly, the molecular chain were found to tend to align perpendicular to the electric field of the polarized laser, that is to say, the molecular chain inclined to align perpendicular to the direction of LIPSS.

聚酰亚胺分子中的羰基在偏振激光电场的作用下，沿电场方向取向排列，而使整个分子链沿垂直于电场的方向取向排列。

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。