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- laser threshold power density 激光阈值功率密度
- When pumped by the treble Nd3+:YAG pulsed laser we found laser emission at 460nm. The FWHM is 2.4nm and the threshold power density is 9.7kW/cm2/pulse. 在三倍频的Nd3+:YAG 脉冲激光的泵浦下;观察到了阈值9.;7kW/cm2/pulse、激射峰460nm、半宽2
- The threshold power density is 1.38x105W/cm2 and the switching time is about 100ps of the optical bistability was obtained. The experimental results agree well with the theory one. 理论与实验结果基本一致。 ZnSZnSeZnS/ZnSe1.;0×105W/cm2514
- threshold power density measurement 阈值功率密度测量
- The results indicate that it can obtain the laser beam with less spot and more power density, which could use in LM. 结果表明，经过这种传输变换后可获得光斑直径较小的、功率密度较高的、可用于激光加工的激光束。
- On the other hand, porous silicon with silica gel can emit blue light afterirradiated by laser with given power density. 采用一定功率密度的激光处理覆盖有二氧化硅凝胶的多孔硅的方法,获得了在不影响其机械强度的前提下的多孔硅的蓝光发射。
- Average linear power density in the core is 161W/cm. 堆芯平均线功率密度为161W/cm;
- When laser power density is greater than 18 GW/cm~2,residual stresses of EBW line are changed,which improves residual stress distribution. 当激光冲击的功率密度大于18 GW/cm2时,激光冲击强化处理使电子束焊缝区的残余应力改变明显,改善了焊缝残余应力的分布;
- The experimental data obtained may be used as a reference for the treatment of otosclerosis with laser of appropriate power density. 所得实验数据可供激光治疗耳硬化症选择适当的功率参考。
- High controlled capability of the superconducting switch can be obtained because of the more homogeneous laser power density. 因光束光强分布更加均匀，使通断控制性能更高；
- The resuls show that , ander some conditions , their laser threshold is lower and efficiency higher than that of equal-lengen to the cavi-ty. 实验结果发现：在相同条件下，激光棒适当长于椭圆泵浦腔（灯弧长），与棒和椭圆泵浦腔（灯弧长）相等时相比，能降低泵浦阈值、提高输出效率。
- The laser solves the problems such as unstable signal output in the intracavity OPO and optical damage due to the exorbitant intracavity power density. 正交波罗棱镜腔OPO激光器解决了内腔式光参量振荡信号光输出不稳定，以及腔内光功率密度较高容易引起光学损伤等工程应用难题。
- Threshold power of electromagnetism in magneto alternator is the essential performance index of and one of the signiticant bases to alternate the type of generators. 永磁同步发电机的极限电磁功率是发电机的重要性能指标，是选择发电机类型重要的依据之一。
- The rate equation formalism is used to develop the concepts of laser threshold, population inversion and modulation response. 比例方程式形式用来生成雷射临界点、能态数反转与调变反应的概念。
- The fatigue test results show that the higher shock impedance of overlays,and the higher laser power density,the greater the increase of fatigue life of aluminum alloy. 疲劳试验结果表明：约束层冲击阻抗越大，激光脉冲功率密度越高，铝合金激光冲击处理后疲劳寿命的提高越显著。
- A power density 1207 W/kg was obtained with an energy density of 5.7 Wh/kg. 3. 在功率密度为1207 W/kg 时;其能量密度为5.;7 Wh/kg。
- The main problems for MFC are low electron transfer and power density. 当前MFC技术的主要限制因素是电池输出功率低。
- The effects of device temperature on the laser threshold current, external differential quantum efficiency (DQE), and output wavelength are also investigated. 研究了器件温度对于激光阈值电流、外微分量子效率和输出波长的影响。
- Based on laser threshold value method,central wavelengths of two kinds of phosphate laser glass used in high-power solid-state laser segment amplifiers are tested. 利用激光阈值法对两种应用于高功率固体激光片状放大器中的磷酸盐激光玻璃的中心波长进行了实验测试。
- With the appearance of high power laser bean, power density of it is improved expressly; the technology of deep penetration laser welding is applied widely in the industry. 随着大功率激光器的出现,尤其是激光光束的功率密度的提高,激光深熔焊接技术在工业生产中的应用日益广泛。
