查询词典 laser material

Main products of Sunic Photoelectricity: Laser marking machine, Pneumatic marking machine,Laser cutting machine,Laser engraving machine,Laser scribing machine,Laser snick machine,Full sets of solar equipment series etc up to 30 kinds of products. they are widely applied in the fields of solar energy,aero-space and electron, spare parts of automobile, hardware, food and medicine, medical instrument, advertisement and clothes, printing and packing, arts and crafts and so on.. Among them, YAG laser scribing machine have supply the gap in China and substitutes the imported goods, it has taken up more than 85% market share in China and has been appointed the product of foreign-aid project of CCPIT (China Council for the Promotion of International Trade).

三工光电主要产品：激光打标机系列、气动打标机系列、激光切割机系列、激光雕刻机系列、激光划片机系列、激光刻膜机系列、太阳能成套设备等三十多种产品，广泛应用于太阳能、电子元器件、汽车摩托车零配件、航空航天、五金机械、工具量具刃具、水暖洁具、食品医药、医疗器械、化妆品、印章、广告、皮革服装、印刷、包装、装潢、工艺品等领域。

The research which is the important part of the tunable erbium-doped fiber laser is composed of two main parts: 1. the gain part of the tunable erbium-doped fiber laser, which in fact is an erbium-doped fiber amplifier, its output characteristics are discussed both in theory and experiment, and the differences are also discussed between theory and experiment; 2. the saturated absorber part of the tunable erbium-doped fiber laser, also the part to narrow the line width of the fiber laser. The line-width narrowing mechanism in fiber laser induced by unpumped Er-doped fiber is presented from the aspect of coupling wave equation, and the main factor is considered as the standing wave induced by interference. The line-width is narrower when the standing wave is stronger, and the narrowing effect disappears with the disappearance of the standing wave. In the experiment, when adding a Faraday mirror in the laser cavity to remove the standing wave , the narrowing effect disappears. So the theory is proved by the result of the experiment.

本课题的研究内容是集成光学声光可调谐掺铒光纤激光器的重要组成部分，主要分两部分：1、声光可调谐掺铒光纤激光器中增益部分的研究，相当于对掺铒光纤放大器的研究，理论上对掺铒光纤放大器的输出特性进行分析，实验上实现了掺铒光纤放大器系统，并将实验数据与理论计算数据进行对比，分析了误差产生原因；2、声光可调谐掺铒光纤激光器中饱和吸收体部分的研究，即压窄光纤激光器输出线宽的研究，从耦合波方程出发，理论上解释了未泵浦掺铒光纤压窄光纤激光器线宽的原理，分析了影响该作用的主要因素是未泵浦掺铒光纤中相对传输的光干涉形成的驻波：驻波越强，压窄效果越好，相反当没有驻波时，没有压窄效果，在实验上通过在激光器腔内加入法拉第旋转镜使驻波消失，同时压窄效果消失，从而验证了理论分析的正确性。

And a number of national patents, research and development of laser marking machine, laser engraving machine, laser eyebrow washing machines, Photorejuvenation machine, laser therapy instrument, pneumatic marking machine, plate embossing machines and other products, and laser components Products , such as krypton lamps, xenon lamps, CO2 laser tube, optical lenses and other series.

并获得多项国家专利，研制开发的激光标记机、激光雕刻机、激光洗眉机、光子嫩肤机、激光治疗仪、气动标记机、标牌压印机等系列产品，和激光元器件产品，如氪灯，氙灯，CO2激光管，光学镜片等系列。

Firstly, we propose solid-state continue-wave laser to crystallized poly-Si films, the distinction of excimer laser, CW-laser possessed high stability, reliability, durable and low-cost. In this way, we used laser scanning speed and energy to analysis a status of grain lateral growth and crystallizes mechanism for various condition, furthermore, we succeed to crystallize great grain size more than 10 μm. To compare excimer laser crystallization and Sequential lateral solidification, CW-laser don't needed extra procedure to carrier out large grain size.

首先，吾人提出有别於传统准分子雷射结晶技术的固态连续波雷射横向再结晶技术，固态连续波雷射具有高稳定的特性且相较於准分子雷射具有可靠、耐用、价廉且维护成本低的优点，在此我们利用不同的扫描速度与雷射能量，分析出在不同条件下的横向结晶状态与其成长机制，并且成功的成长出大於10 μm的晶粒大小，相较於准分子雷射结晶与循序性侧向结晶，固态连续波雷射不需额外的步骤即可达成大晶粒成长。

Mobile positioning system or dynamic table so that the laser head is cutting material in the system-driven subcapital high speed, laser head from the light source and cutting heads, light source produces a very short wavelength focused laser beam, laser beam through cutting heads, vertically focused the material being cut on the surface, heating and melting, evaporation is cutting material, resulting in the closure of Lancing, slotted openings formation pads.

移动定位系统妪动工作台或激光头，使得被切割材料在系统驱动头下高速运动，激光头由光源部分和切割头组成，光源部分产生波长很短的聚焦激光束，激光束通过切割头，垂直聚焦在被切割的材料表面上，加热、融化、蒸发被切割材料，形成切缝，闭合的切缝形成焊盘开孔。

2Nd, thorough analysis: The Earth may say is an extremely marvelous thermonuclear reactor, when the earth interior pressure achieved certain critical, in the Earth material may decay the nuclear matter is called as the thermonuclear material, can have the thermonuclear reaction, thus has the huge energy, then the melted partial materials, form the rock magma are the liquid state materials, this response stratification plane is possibly many stratification planes, first possibly is located between the earth's crust and the mantle, upward next two transfers, displays for the light density material diastrophism as well as density upper mantle material phenomena and so on solidification; Under second possibly is located between the mantle and the core, the pressure is more formidable, causes not not easily to have the thermonuclear reaction thermonuclear material to have the response, forms the relative quite stable liquefied material level, simultaneously is upward next two transfers, forms the counter-flow phenomenon which the high density under mantle as well as the high density core material contact liquefies and is far away cools; These material periodicity regular movements and so on convection as well as Earth polar axis rotation are possibly the basic source powers which the terrestrial magnetic field produces.

深入剖析：地球可以说是一个非常奇妙的热核反应堆，当地球内部的压力达到一定的临界，地球物质中可衰变的核物质统称为热核物质，就会发生热核反应，从而产生巨大的能量，进而融化部分物质，形成岩浆即液态物质，这个反应层面可能是多个层面，第一层可能位于地壳与地幔之间，向上下两边对流，表现为轻密度物质的地壳运动以及中密度上地幔物质的固化等现象；第二层可能位于下地幔与地核之间，压力更为强大，引起不易发生热核反应的热核物质发生反应，形成相对比较稳定的液化物质层，同时向上下两边对流，形成中高密度的下地幔以及高密度地核物质的接触液化和远离冷却的对流现象；这些对流以及地球极轴自转等物质周期性规律性运动可能是地球磁场产生的根本源动力。

A method of production of a reduction resistant dielectric ceramic composition having a superior low frequency dielectric characteristic and further improved in accelerated lifetime of insulation resistance, specifically a method of production of a dielectric ceramic composition containing a main component including a dielectric oxide of a specific composition, a first subcomponent including a V oxide, a second subcomponent containing an Al oxide, a third subcomponent containing an Mn oxide, and a fourth subcomponent containing a specific sintering aid in a specific ratio, including a step of mixing at least part of the materials of the subcomponents excluding one or both of at least the material of the third subcomponent and material of the fourth subcomponent with the starting materials prepared for obtaining the material of the main component to prepare the pre-reaction material, a step of causing the prepared pre-reaction material to react to obtain a reacted material, and a step of mixing the materials of the subcomponents excluded when preparing the pre-reaction material with the obtained reacted material to obtain a dielectric ceramic composition.

本发明提供一种介电陶瓷组合物的制造方法，其中介电陶瓷组合物以特定的比例含有如下成分：含有特定组成的介电体氧化物的主成分，该主成分可以提供具有优异的低频率介电特性的、绝缘电阻的加速寿命进一步提高的耐还原性介电陶瓷组合物的制造方法，含有V氧化物的第1副成分，含有Al氧化物的第2副成分，含有Mn氧化物的第3副成分，以及含有特定的烧结助剂的第4副成分；该方法包含如下工序：将至少除去第3副成分的原料和第4副成分的原料的一种或两种的其它副成分原料的至少一部分，与为了得到主成分原料而准备的起始原料混合，准备反应前原料的工序；使准备的反应前原料反应而得到反应后原料的工序；以及在所得的反应后原料中，混合在准备反应前原料时除去的副成分原料，得到介电陶瓷组合物原料的工序。

This time in Taipei, Li Hui uniquely abandoned his former way of presenting laser works by using concrete objects. Instead he emphasizes on the unique characteristics of laser light itself, such as the reaction between laser lights and smokes created by the fogger, how laser lights disappear in space due to the density of the air and furthermore how the audience reacts to the laser lights.

这次在台北，李晖放弃先前利用实体物品呈现雷射作品的方式，改而强调雷射光束本身独一无二的特性，例如，雷射光束及烟雾的相互作用，雷射光束如何因为空气密度的变化而在空中消失，以及观众对雷射作品有什麼反应。

To study the effect of laser flux on impulse coupling coefficient during the interaction between hydrogen fluoride laser and aluminum at air ambient and in vacuum, respectively, by changing laser spot size on the aluminum target, the relationship between impulse coupling coefficient and laser flux is obtained, which are compared with the interaction between CO2 laser and aluminum.

为了研究激光功率密度对氟化氢激光与铝靶相互作用过程中冲量耦合系数的影响，分别在大气和真空中，用聚焦后的激光烧蚀铝靶，通过改变聚焦到铝靶的光斑大小，得到冲量耦合系数和激光功率密度的关系，并将该实验结果与CO2激光和铝靶相互作用的实验结果进行比较。

Based on the analysis of advantages on laser thermal-stress forming and laser peen forming, a laser pre-stressed compound peen forming of plate is presented, the technology combines heat stack action of continuous laser and shock wave action of pulse laser, so it combines heating effect and mechanics effect.

在对激光热应力成形和激光喷丸成形的技术优势进行分析的基础上，提出了一种板料激光预应力复合喷丸成形技术，其将连续激光的热堆积作用和脉冲激光的冲击波作用相结合，是一种热效应和力效应复合的成形方法。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。