激光

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。

Lasers characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

Laser's characteristic as a shock wave drive and the advantages of KrF laser are explained. Finally, the progress at home and abroad is enumerated.In chapter two, the basic principle of the EOS study is introduced. Specially, the impedance mismatch effect of the double-layer flyer is mentioned here. It is the primary theoretical basis of this paper.In chapter three, a one-dimension, three-temperature hydrodynamic code HYADES is introduced briefly. it is used to make a qualitative analysis about how the thickness of ablator affect the flyer velocities and stability.In chapter four, the experimental setup is described.

第一章为绪论部分，简要总结了状态方程研究的历史，激光作为冲击波驱动源的特点和KrF激光的优势，以及国内外的进展情况；第二章是本工作的理论基础，讨论了冲击波物理和雨贡纽曲线测量的基本原理和方法，重点介绍了激光飞片法的特点、关键要素和双层飞片的阻抗失配效应，鉴于KrF激光短波长和长脉宽的特点，我们拟对双层飞片的特性展丌研究工作，为实测状态方程做好准备；第三章简单介绍了一维三温流体力学数值模拟程序Hyades并运用它进行了若干状态方程实验的计算和设计，进行了烧蚀层厚度对飞片速度、稳定性的影响的定性分析；第四章是实验平台描述部分，介绍了光束平滑化技术，靶的制作，条纹相机的原理和使用，系统同步控制以及光学记录速度干涉仪系统的简单原理和构成。

The fluence and frequency of laser was controlled precisely, which could melt and destroy the adiposis tissue without damage to the adjacent tissues.The histological study of treated adiposis tissues,post-operative reaction and clinical results were observed and studied.Results Local adipose tissues were melted and liquefied effectively by the laser.

方法对35名面颈部及上臂局部脂肪堆积的患者进行了激光融脂术，使用Nd：YAG激光经光纤导入皮下脂肪层，精确控制激光的输出能量和频率，利用激光的热作用融解脂肪组织，观察脂肪组织的组织学变化、术后反应及临床效果。

Spectrum control technology and its application researchBasic theory of smoothing by spectral dispersion in high-power laser system was studied. Periodical frequency modulation was obtained by chirped pulse stacking, and novel special gratings were proposed here to obtain angular spectral dispersion and temporal smoothing of focal spot.

并在国际上首次成功地应用于激光聚变高功率激光系统中。3、激光脉冲光谱控制技术及应用研究研究了高功率激光光谱色散平滑的基本理论，提出利用堆积啁啾脉冲的周期性光谱调制特性和新颖特殊光栅实现光谱角色散和激光束远场焦斑的时间平滑。

It is now a first-rate national center for ophthalmology. Some of the projects rank high internationally, for example, the success of treating 30,000 cases of myopia with LASIK. For the success of the operations, the center introduced sophisticated medical equipment, e.g. the first personalized LASIK. For optimal results, the center used the most sophisticated cornea topographic map, cornea pachymeter, automatic plate shaper and eye ground confocal laser scanning system, making the operations a more sophisticated project. Moreover, as all the doctors have rich clinical experience and expertise, and with painstaking efforts, they acquired great skills and familiarity with the medical equipment, resulting in what is "the man-machine unity".

一些项目已达到国际先进水平，如以该中心成功完成30000例准分子激光治疗近视为例，为了做好准分子激光治疗近视手术，该中心不仅引进了先进的治疗设备，如在我国率先引进了第一台个性化准分子激光治疗近视系统，而且为了严格把关，选择最佳治疗效果，又启用了最先进的角膜地形图、角膜测厚仪、微型自动角膜板层成型刀和眼底共焦激光扫描系统等，使准分子激光治疗近视手术成为更完善的系统工程，加之该中心医生大都从事眼科临床多年，有丰富经验和深厚知识底蕴，通过刻苦努力，很快做到&人机合一&，娴熟地掌握了最先进的眼科诊疗武器。

The 69 subhyaloid hemorrhage crises of diabetes were randomly divided into two groups.45 cases in the combined treatment of traditional Chinese medicine and western medicine group;according to control group,determine the treatment based on differentiation of symptoms and signs in earlier period,intermediate stage,later stage.

两组均常规应用西药、激光光凝治疗。西药常规应用可元，并对症控制血糖、血脂、血压；激光光凝治疗针对有视网膜激光光凝适应症的病例，应用美国科以人公司生产的多波长氪激光器，进行局部视网膜激光光凝或次全视网膜激光光凝治疗。

Main products of Sunic Photoelectricity: Full sets of solar equipment (Laser snicking machine series, laser scribing machine series, module filtering apparatus series, laminated machine series, and cell test apparatus series), YAG laser marking machines series, CO2 laser cutting machine series, CO2 laser engraving machine 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..

三工光电主要产品：太阳能成套设备（激光刻膜机系列、激光划片机系列、电池分选机系列、组件层压机系列、组件测试仪系列）、激光打标机系列、激光切割机系列、激光雕刻机系列等三十多种产品，广泛应用于太阳能、航空航天、电子元器件、汽车摩托车零配件、五金工具、食品医药、医疗器械、广告服装、印刷包装、工艺品等领域。

Mainly engaged in laser, SMT Stencil, laser cutting machine, FPC laser cutting machine development and research.

主要从事Wattlaser激光、金属激光切割机、FPC/PCB及非金属激光切割机、激光焊接、激光抛光、SMT印刷模板的开发和研究。

This achievement will definitely push the laser based projection display and color laser printing techniques to a new age, and also change a lot to the laser display and laser information processing technologies.

同时输出红绿蓝三基色激光的固体激光器的成功开发，必将推动激光投影显示、激光彩色打印等技术的发展到一个新的台阶，极大地改变激光显示、激光信息处理等领域的技术发展现状。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。