激光能量密度

在起始清洗阈值和完全清洗阈值之间，清洁率随着激光能量密度的升高而增大。

Between the initial cleaning threshold and complete cleaning threshold , cleaning percentage of the surface increases with the increasing of laser fluence .

研究发现，MgO薄膜的结晶性主要受控于衬底温度和激光能量密度，而薄膜的生长速率则依赖于脉冲频率、衬底与靶材间的距离以及激光能量密度。

It is found that MgO films ' crystallinity is mainly affected by substrate temperature and laser fluence , while the growth velocity of MgO films is dominated by pulse frequency , substrate-target distance and laser fluence .

激光能量密度对纳米Al2O3/PS复合材料致密度和显微结构的影响

Effects of Laser Energy Density on Densities and Microstructures of Nano-Al_2O_3 / PS Composites

结果PDT可造成RPE细胞死亡，死亡率与激光能量密度和光敏剂浓度成正相关。

Results PDT caused the death of RPE cells .

结果表明，就能量和能量密度比较，影响种蛋孵化质量，主要是激光能量密度，He-Ne激光8.5&17J/cm~2为较佳能量密度。

The result shows that the incubation quality of eggs is concerned mainly with energy density of laser .

我们通过改变激光能量密度，观察了对实验小鼠移植瘤（S180）的坏死深度及表面温度的变化。

By changing laser energy density , we noticed changes of necrosis depth and sur-face temperature .

论文阐述了CCD成像法测量激光能量密度分布的基本原理，并在特定条件下对激光能量测量模型进行简化。

The basic principle of measuring laser energy density distribution base on CCD imaging was expounded , and the laser energy measurement model is simplified in a particular situation .

激光能量密度P／Db~v对残余应力的大小有很大影响，且对具有不同原始组织的材料，影响的规律也不同。

It is found that great effects have been made on the values of residual stresses with change the laser energy density P / D_bv , and the affecting trends are also different for the different materials with different prior structure .

当CO2激光能量密度大于12J/cm~2后，靶面处的大气就会被大面积击穿，大部分的激光能量消耗在击穿过程中，使得脱漆效率下降。

When the laser fluency is more than 12 J / cm2 , the air near the surface will be broken down . This process wastes most energy and decreases the efficiency of paint stripping .

实验获得消融弹坑直径和消融深度随激光能量密度的变化关系，并确定脉冲CO2激光对猪颞骨的消融阈值范围为16~21mJ/mm2。

The experiments also obtained the trend of crater diameter and depth with energy density and found the ablation threshold in an energy density range of 16 ~ 21 mJ / mm2 .

试验结果表明，激光能量密度是控制DLF工艺成形质量的关键性因素。

The experimental results showed that the specific energy for laser processing is the most important factor that controls the part qualities .

结果表明：激光能量密度为0.45μJ/cm2时，达到像元饱和；能量密度为0.14J/cm2时，辐照6个脉冲后实现了CCD器件的硬损伤，硬损伤源于晶格被加热并汽化形成等离子体；

The experiment shows that the saturated energy threshold of CCD element is 0.45 μ J / cm ~ 2.The CCD is damaged by six pulses with energy density of 0.14 J / cm ~ 2 and the damage is due to lattice heat and evaporation with plasma .

实验中，用He-Ne探测光束偏转方法检测光声信号，并根据光声信号飞越时间随激光能量密度的变化测定了纯铜的脉冲激光烧蚀阈值。

The photoacoustic signals were detected by means of deflection of a He-Ne probe beam in the experiment . The pulsed-laser ablation threshold of pure copper was determined according to the variation of the time-of-flight ( TOF ) of photoacoustic signals with the laser energy .

仿真结果表明，K9玻璃沿径向产生很大的温度梯度，激光能量密度越大，材料中心的温度越高，中心的应力也越高。

The simulated experimental result shows that , great temperature gradient in K9 glass exists in radial directions . The more energy density resulted in higher temperature and greater stress in the center of the K9 glass .

用时间分辨质谱技术测定和分析了脱附和光解离产物，发现在银表面上DTBP同时发生光脱附和热脱附；在激光能量密度较高时还伴有该分子中O-O键断裂的光解离。

The analysis of TOF spectra show that the UV laser - induced desorption of multilayer of DTBP on Ag surface proceeds via both photochemical desorption and thermal desorption at lower fluence , and the primary photodissociation occurs with rupture of the weak O-O bond at high laser fluence .

激光能量密度不同，对流作用不同。

The effect of convection differs with the laser power .

激光能量密度对原位生长碳化硅晶须形态的影响

Effect of Laser Energy Density on SiC Whisker Morphologies by In-situ Growth

激光能量密度越大，材料越容易受到损坏。

Material is more easily damaged by higher energy density .

激光能量密度的调节应在治疗时根据实际治疗反应选择相对保守的能量密度。

Conservative fluence should be chosen while treating according to the actual reaction .

揭示了不同激光能量密度下烧结样微结构的变化规律。

The microstructure evolution of sintered HAP was studied under different laser energy density .

激光能量密度、高斯分布及滤光片与细胞损伤直径的关系

Effect of energy density and Gaussian distribution of laser on radius of cellular damage

本文主要研究了基于光斑图像的激光能量密度分布测量技术，通过所测量的激光能量密度分布为评价激光性能提供了可靠的理论依据。

This paper mainly studied measurement technique of laser energy density distribution based on imaging .

紫外激光能量密度对聚酯纤维处理后的表面形貌的影响

The Effect of the UV Excimer Laser Energy Density on the Surface Morphology of the Polyster

当入射激光能量密度较高时，双光子过程将起主要作用。

For polymethyl methacrylate , two photon processes play an important role at high incident energy density .

给出了刻蚀速率与激光能量密度的关系，并对实验结果进行了分析。

The relationship between ablation rate and laser fluence was showed and the experimental results was analyzed .

激光能量密度分布是评价激光发射与传输性能的重要指标之一。

The laser energy distribution is one of the important indicators to the evaluation of laser performance .

等离子体产生时，激光能量密度越大，等离子体密度也越大。

When plasma was ignited , the density of plasma was increased as the laser energy density .

本文完成的工作如下：1.在分析激光能量密度实时控制方法的基础上，设计系统的总体方案。

Analyze the real-time control method of laser energy density and design the system scheme . 2 .

而激光能量密度直接影响了激光特异性效果的强度。

The laser energy density affects the degree of specific laser effect set by the laser pulse duration .

研究发现，当激光能量密度固定时，脉宽越短，电声驰豫时间越短。

For a certain laser fluence the shorter the pulsewidth , the shorter the electron-phonon relaxation time is .