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flat flat
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     Two xenon flash lamps are connected in series in the experiment, and the flat flat resonator is dispersed by double prisms. Tunable range from 750nm to 950nm, laser output 893 mJ (800nm), electro optic efficiency 0 89%.
     试验采用双灯串接泵浦,双棱镜色散光学谐振腔,平平腔型,调谐范围为750~950nm,在中心波长800nm处得到激光输出能量为893mJ,电光转换效率为0.89%。
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  “flat flat”译为未确定词的双语例句
     The Virtual Instrument Techonlogy and the software Software Developping Flat flat LabVIEW
     虚拟仪器技术及其软件开发平台LabVIEW
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     A U like shape on the curve of fundamental mode waist in the active medium versus pump power, at different cavity lengths of the laser diode (LD) end pumped Nd:YVO 4 solid state lasers with a flat flat resonator structure, is analyzed by means of the transform circle approach.
     运用谐振腔变换圆理论 ,详细分析了激光二极管抽运的Nd :YVO4 平行平面腔固体激光器振荡光在晶体内的基模光斑半径随抽运功率变化的U形曲线 .
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     Birefraction of W Flat
     W片的双折射
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     The World is Flat
     世界是平的
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Let R be an associatire ring with identity,UR denotes a fixed flat right module. in [1], Koo-Guan Choo had studied othe characterizations of Ⅱ-Flat flat right Rmodnles; In[2], we had studied a sportal class of associative ring R with identity in which every direct prodvct of copies of R is a finitely τ-flat right R-module. The main parpose of this pape is to glue other characterizations of Ⅱ-Fiat flat right R-modules Relatively torsion theories.

设R是有单位元的结合环,UR表示一个固定的平坦右R-模.文[1]中,Koo-Guanchoo给出了π-flat平坦右R-模的另一种刻划;文[2]中又研究了RΩ是有限τ-平坦右R-模的环类,Ω是任意集合.本文的主要目的是给出相关于挠理论τ的π-flat平坦右R-模的刻划,从而推广了[1]的定理3.1.

A lot of work has been done to improve the output energy and the efficiency of flash lamp pumped Ti:sapphire laser. The lifetime and the fast pulse discharging performance of domestic xenon flash lamp have been researched. The spectrum of xenon flash lamp in different discharging current are tested. Two xenon flash lamps are connected in series in the experiment, and the flat flat resonator is dispersed by double prisms. Tunable range from 750nm to 950nm, laser output 893 mJ (800nm), electro...

A lot of work has been done to improve the output energy and the efficiency of flash lamp pumped Ti:sapphire laser. The lifetime and the fast pulse discharging performance of domestic xenon flash lamp have been researched. The spectrum of xenon flash lamp in different discharging current are tested. Two xenon flash lamps are connected in series in the experiment, and the flat flat resonator is dispersed by double prisms. Tunable range from 750nm to 950nm, laser output 893 mJ (800nm), electro optic efficiency 0 89%. The pump threshold of the laser is estimated 15J with the help of the illustration of input energy vs output energy.

为了提高灯泵钛宝石激光器的输出能量和效率,对灯泵钛宝石激光器进行了大量的试验研究工作。对国产氙灯进行了快速放电和寿命试验;测得了在不同放电电流密度情况下的氙灯发光光谱分布;试验采用双灯串接泵浦,双棱镜色散光学谐振腔,平平腔型,调谐范围为750~950nm,在中心波长800nm处得到激光输出能量为893mJ,电光转换效率为0.89%。该激光器的阈值约为15J。

Yb∶YAG crystal with Yb 3+ doping level up to 30% (in mol) was grown by CZ method. The growth parameters and annealing conditions are studied. The optimal growth conditions were found to be as follows: rotation rate is 15 r/min, pull rate is 0.8 mm/h. The growth atmosphere was nitrogen or argon. The optimal annealing processing is as follows: in oxygen atmosphere Yb∶YAG crystal boule is fired at 1 600 ℃ for 36 h, and then cools to room temperature at a rate of 10 ℃/h. After annealing, the crystal changes...

Yb∶YAG crystal with Yb 3+ doping level up to 30% (in mol) was grown by CZ method. The growth parameters and annealing conditions are studied. The optimal growth conditions were found to be as follows: rotation rate is 15 r/min, pull rate is 0.8 mm/h. The growth atmosphere was nitrogen or argon. The optimal annealing processing is as follows: in oxygen atmosphere Yb∶YAG crystal boule is fired at 1 600 ℃ for 36 h, and then cools to room temperature at a rate of 10 ℃/h. After annealing, the crystal changes from blue to colorless, suggesting that Yb 2+ and color center are eliminated. The distribution of Yb 3+ in Yb∶YAG was characterized by the intrinsic absorption performances of Yb∶YAG at 940 nm. The result shows that 30%(mol) Yb∶YAG crystal is uniformity. The purpose of growing high doping Yb∶YAG is to realize Yb∶YAG microchip laser with high power and high efficiency, thus the laser performance of 30%(mol) Yb∶YAG microchip was investigated. The laser resonator is formed from flat_flat cavity, and CW output at 1.053 μm is obtained with Ti: sapphire laser (940 nm) pumped 5mm×5mm×0.25mm Yb∶YAG chip.

用引上法生长了 30 %Yb∶YAG(摩尔分数 ,下同 )晶体 ,研究了晶体的生长工艺参数和退火工艺参数 ;用 940nm的吸收系数表征了Yb3 + 离子在Yb∶YAG晶体中的分布情况 ,结果表明 :Yb3 + 离子在Yb∶YAG晶体中分布均匀 .研究了晶体微片的激光特性 ,用钛宝石激光器泵浦 30 %Yb∶YAG微片 ,获得了 1.0 5 3μm的高效激光输出 .

 
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