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nd yag laser
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  相似匹配句对
     >(nd/n>l>) d (>t) .
     >(nd/n>l>)d (>t)。
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     2nd.
     (2)对图像分析中最难的子课题之一,纹理图像分析,进行了深入的研究。
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     AESCHYNITE-(Nd)
     钕易解石
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     Sm > Nd.
     Sm>Nd。
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     Nd lasers processing
     加工用的钕激光器
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  nd yag laser
High-energy broadband single-pass fibre Raman laser pumped by a cavity-taper output Nd∶YAG laser
      
Upconversion of 1.064 μm Nd∶YAG laser pulses into intense green 547 and 667 nm light in the 0.75 mol % Er3+-doped phosphate glass fibre has been achieved.
      
The feasibility of selective boriding of AISI 1018 steel using a Nd∶YAG laser has been investigated.
      
Results are reported of cavity-dumping a submillimeter radiation high-Q, zig-zag optically-pumped resonator which utilizes a silicon optical switch photo-excited by a Nd∶YAG laser.
      
From the results of this study, there is the question whether the Nd∶YAG laser is a useful instrument in neurosurgery.
      
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For high perfection of structure in Nd-YAG laser crystals grown by the Czo-chralski method, the dislocation density of the crystals must be decreased. Research study seems to indicate that the direction of dislocation propagation is perpendicular to the solid-liquid interface. In crystals grown with a Convex solid-liquid interface, the low dislocation density is due to spreading out of the dislocations in the central part towards the surrounding areas and the edges. Hence, by applying suitable...

For high perfection of structure in Nd-YAG laser crystals grown by the Czo-chralski method, the dislocation density of the crystals must be decreased. Research study seems to indicate that the direction of dislocation propagation is perpendicular to the solid-liquid interface. In crystals grown with a Convex solid-liquid interface, the low dislocation density is due to spreading out of the dislocations in the central part towards the surrounding areas and the edges. Hence, by applying suitable technology i. e. intentionally changing the shape of the solid-liquid interface, we can obtain crystals in which not only the dislocations are decreased, but also the facets are eliminated.

在采用引上法工艺生长掺钕钇铝石榴石(YAG:Nd)单晶时,为了要得到结构完善的激光晶体,必须设法降低晶体中的位错密度。通过一系列工作,认为在晶体生长过程中,位错走向与固液界面保持垂直的关系。在由凸的固液界面形成小晶面的晶体中,位错密度低的原因是因为凸的固液界面可使晶体中心部分的位错散失在边稜以外。因此,采用合适的工艺条件:即在生长过程中有意识地改变固液界面形状,可使晶体达到既能消除小晶面,又降低位错密度的目的。

CW Nd-YAG laser was used to investigate annealing behavior of <100> Si implanted with Bi ions. The backscattering and channeling measurments indicated that CW Nd-YAG laser annealing is one of nonmelting solid phase epitaxial regrowth process, which optimizes complete recovery of lattice damage and high substitutibility of Bi atoms without impurity redistribution. The experimental results were compared with pulsed Q-switched laser annealing, which induced surface layer...

CW Nd-YAG laser was used to investigate annealing behavior of <100> Si implanted with Bi ions. The backscattering and channeling measurments indicated that CW Nd-YAG laser annealing is one of nonmelting solid phase epitaxial regrowth process, which optimizes complete recovery of lattice damage and high substitutibility of Bi atoms without impurity redistribution. The experimental results were compared with pulsed Q-switched laser annealing, which induced surface layer melting and impurity redistribution.

本文报导用扫描Nd-YAG连续激光对<100>硅中注铋的损伤层进行的退火研究。测量表明:退火能使离子注入造成的晶格损伤很好恢复,90%以上的铋原子处于替代位置,杂质浓度的分布保持不变。文中对退火参数的选择、均匀性,以及表面温度升高、外延再生长层厚度等问题进行了讨论。文末还将实验结果与熔化型脉冲激光退火进行了比较。

In the high power segmented CW Nd:YAG laser concave surfaces ground directly on laser rods have been employed to compensate the thermal focusing effect. We have obtained experimentally 100~150 watts output power in less than 10mrad from a laser of two Nd:YAG rods in series.

在多个激活元件激光器中,为了补偿棒的热聚焦效应,对激光棒进行了端面修磨.在两根棒串接的连续激光器中,实验上获得了发散角小于10毫弧度的100~150瓦的多模激光输出.

 
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