查询词典 lasers

Lasers can exert radiation pressure on small particles, which were used to cool and trap neutral atoms.

激光能够对粒子产生辐射压力，被用来冷却捕陷原子。

In order to analyze the characteristics of multi-position pumped fiber laser expediently, the predominant part of the re-emission was adopted to improve the solutions precise, and the rate equations describing the Yb-doped multi-position pumped fiber lasers were solved analytically.

为了方便地对多点抽运光纤激光器的特性进行分析，采用保留上能级粒子再发射项主体部分的方法以提高精确度，解析求解了多点抽运掺镱光纤激光器的稳态二能级速率方程组，得到了光纤激光器的输出功率的近似解析解。

The experimental results showed that in laser engineering the small-diameter laser rod could be used to improve the beam quality of high-power lasers.

结果表明，通过使用小口径激光棒提高激光器输出光束质量工程上可行。

The requirements for lasers,optical setups,recording ma terials and chemical processing to make large-format holograms of great scenes are discussed.A model of Suzhou Industrial Park measuring 160×180cm,and other large models were recorded using an argon ion laser with an etalon on self-prep ared ultra-fine-grain silver halide plates(average grain size:20nm).Large-for mat transmission holograms (size:50×40cm) of high diffraction efficiency and lo w noise level were obtained with proper exposure and chemical processing.

分析了制作大幅面大场景激光再现全息图对激光器及光路布置、记录介质、化学处理等方面的特殊要求，用自制的颗粒平均尺寸为20nm的超细颗粒卤化银全息干板及带标准具的氩离子激光器，对场景面积达160×180cm的苏州工业园区等模型作全息记录，经适当曝光和化学处理，制得了幅面达50×40cm，且具有较高衍射效率和较低噪声的透射全息图。

In these lasers, a section of Erbium doped fiber without undergoing bump used as saturatable absorber. A self-written grating may be formed by stable standing wave in this absorber. Because selfwritten grating possesses a characteristic of very narrow rejection band and can suppress any other side-band effectively, so the multi-longitudinal mode and mode jumping in other normal fiber ring laser are removed in this one.

将未泵浦掺铒光纤作为饱和吸收体，利用驻波干涉在掺铒光纤中诱发的自写入光纤光栅，由于自写入光纤光栅具有窄带滤波特性及对边模有效的抑制作用，解决了一般光纤环形腔激光的多纵模和易跳模之问题，获得具有极窄线宽，不跳模时间大于3小时单频激光输出。

It is presumed whether the electron temperature can rise up quickly in the early discharge and fall down rapidly during the discharge afterglow is the key to realize the alternate oscillation of self-terminating and recombination lasers in univalent ions of strontium in experiment.

分析了两种激光交替振荡的发射过程、脉冲宽度特性和粒子数反转机理，认为在放电早期和余辉期电子温度的急剧升高和降低是Sr离子自终止和复合激光实现交替振荡的关键所在。

It is shown that fiber lasers can be coherently combined using self-coherence by mutual injection , and the experimental combining efficiency can reach 92%.

结果表明，通过能量的相互注入，可以实现光纤激光器的自组织相干合成，合成效率达到92%。

Solid state lasers doped Nd~(3+) operating at near-infrared 1.06μm have been designed into kinds of geometry including rod, disc and fiber.

激光二极管泵浦的高功率固体激光器具有效率高、光束质量好，结构紧凑、寿命长等优势，在工业生产、科学研究和军事领域都有着广泛的应用。

A: The technicians are currently refining the engine, for example with new light and shadow effects, bigger explosions and better lasers.

答：我们的工程师们正在努力优化游戏引擎，比如加入新的光影效果，更宏达的爆炸和更细致的激光效果等等。

Results indicate that when the fiber is cooled in air(the heat transfer coefficient is 10 W·m-2·K-1),fiber lasers maximum output power is 105 W.

计算结果表明：自然对流的情况下，对流传热系数为10 W。 m-2.K-1时，光纤激光器的最大输出功率为105 W

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。