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pumping energy     
相关语句
  泵浦能量
     By using a grating tuned pulsed TEA CO 2 laser with 10R(6) line to pump NH 3 molecules in a miniature ASE cavity of 0.2 m in length,when the pumping energy was about 1.1 J and the pressure of NH 3 molecular gas was about 0.9 kPa,a new line with wavelength about 298 μm which may be a stimulated Raman line of V 2: aR(0,0) transtition was found.
     利用反射光栅调谐的脉冲TEACO2激光10R(6)泵浦0.2m长的小型NH3分子远红外激光器,当泵浦能量为1.1J、NH3分子气压为0.9kPa时,产生298μm的新谱线,对应V2:aR(0,0),受激喇曼跃迁
短句来源
     Using pumping energy of 46 mJ to pump chromising forsterite crystal,the output laser pulse with the energy of 4.8 mJ and pulse duration of 8.2 ns and central wavelength near 1.22 μm was obtained,the light-light transfer efficiency was up to 12%.
     Cr4+∶Mg2SiO4在46 mJ的泵浦能量下,输出激光脉冲的中心波长约为1.22μm,能量和脉宽分别为4.8 mJ和8.2 ns,其光-光转换效率达到12%.
短句来源
     The theoretical model gain switch-ing model predicts that the temporal characteristics of the laser,the buildup time and the pulse-width are dependent only on the pumping energy level and cavity length.
     这种泵浦时间远小于激光脉冲建立时间的增益开关型激光器的理论分析表明,其输出激光的时间特性仅取决于泵浦能量(密度)的水平和腔长(以及腔损耗),而与泵浦脉冲宽度和波形无关。
短句来源
     Compared with the pumping beam, the divergence angles of stimulated Brillouin scattering (SBS) in methanol, ethanol and acetone were reduced to a factor of 3.2, 3.0 and 2.4 while the pulse durations were compressed to 4.3, 4.3 and 2.6. The relation between the divergence angle of the stimulated Brillouin scattering and the pumping energy was obtained.
     在甲醇、乙醇和丙酮的受激布里渊散射实验中,分别获得受激布里渊散射光发散角减小3.2、3.0和2.4倍,脉宽压缩4.3、4.3和2.6倍,并获得散射光束发散角随泵浦能量的变化关系.
短句来源
     By using a ring aperture to select the part of laser beam with best beam quality, more than 90% Banian photonconversion efficiency was obtained with a pumping energy of 40mJ.
     采用环状光阑截取非稳腔激光输出中光束质量最佳部分,在40mJ泵浦能量下,获得喇曼光子转换效率大于90%.
短句来源
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  抽运能量
     Under the condition of charge voltage of 23 kV and pumping energy density of 10 0 J/cm 3, the average small signal gain coefficient of 4 99%cm -1 and energy storage efficiency of 3 0% are obtained in experiments.
     在充电电压为 2 3kV ,抽运能量密度为 10 0J/cm3 的条件下 ,获得了平均值为 4 99%cm-1的小信号增益系数和 3 0 %的储能效率。
短句来源
     The pumping energy, lens focal length affecting the beam quality of the SBS polarex were studied.
     研究了抽运能量、透镜焦距等因素对受激布里渊散射偏振抽取腔输出光光束质量的影响
短句来源
     According to the conclusion, applying low pumping energy and Ti:sapphire off-focusing technique to the amplifier, we do the experiment about high repetition rate femtosecond Ti:sapphire regenerative amplification and compressing without the stretcher. The femtosecond amplified pulse of perfect beam quality is obtained. The energy of amplified pulse is more than 100μJ.
     以此为依据 ,采用低抽运能量和放大腔中钛宝石晶体离焦技术 ,成功地进行了无展宽器的高重复率飞秒钛宝石再生放大及压缩技术的实验研究 ,并获得了高光束质量的飞秒放大光脉冲 ,放大光脉冲能量大于 10 0 μJ,重复频率为 1kHz,光谱带宽 7.7nm ,压缩后脉宽 5 0 0fs.
短句来源
  泵浦能
     Pumping energy distribution in solid laser rods calculated with the light beam method
     光束方法计算固体激光棒内泵浦能的分布
短句来源
     Under the condition of charge voltage 22kV and pumping energy density of 14.62J/cm 3, obtain small signal gain coefficient of 4.9%cm -1 and energy storage efficiency of 2.43%.
     在充电电压为 2 2 k V、泵浦能密度为 1 4 .62 J/cm3的条件下 ,获得了 4 .9% cm-1的小信号增益系数和 2 .4 3 %的储能效率。
短句来源
  泵送能
     Investigation of pumping energy in concrete pump truck
     关于混凝土泵车泵送能的探讨
短句来源

 

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      pumping energy
    Laser output characteristics are presented as functions of gas pressure, pumping energy, and resonator parameters.
          
    The temporal evolution and the superficial density of output energy of both a neutral and a base species are studied as a function of the pumping energy and the acidity of the solution.
          
    The DDFB laser is also characterized by a threshold pumping energy of ~ 90 μJ and a pumping energy density up to 40 mJ/cm2.
          
    If the plasma is initially ionized beforehand, a pumping energy of ?10 J is sufficient for lasing in the 100-200-? band.
          
    When the KGW:Nd laser has an electrical pumping energy of 7.3 J and a cavity length of 77 cm, the intracavity OPO and the extracavity OPO emit pulses with energies of 14.5 mJ and 12.0 mJ and duration 18 nsec and 13 nsec respectively.
          
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    The multiple-spike structure of ruby laser output at and over the pumping threshold is observed. Photographs of the far-field patterns, near-field patterns and intensity distribution of the end face are given. Effects of variation of pumping energy and angular position of the ruby rods on the patterns are studied. It has been found that the far-field pattern of the higher quality crystals has a characteristic direction, which rotates with the rotation of the crystal. At a certain angle of rotation, the...

    The multiple-spike structure of ruby laser output at and over the pumping threshold is observed. Photographs of the far-field patterns, near-field patterns and intensity distribution of the end face are given. Effects of variation of pumping energy and angular position of the ruby rods on the patterns are studied. It has been found that the far-field pattern of the higher quality crystals has a characteristic direction, which rotates with the rotation of the crystal. At a certain angle of rotation, the centre of the far-field pattern has a mosaic-type structure and fine interference fringes, and the transverse mode structure on the near-field patterns appears. Two-pinhole interference fringes of the near-field patterns are obtained. It is shown that the above phenomenon depends strongly on the quality of the ruby rods (including the crystallization, fabrication and coating). The experimental results are discussed qualitatively in the light of the optical dielectric waveguides and coherent scattering mechanism.

    我们观察了在阈值及高于阈值激励能量下的红宝石光激射器输出的多尖峯结构,拍照了远场花样、近场花样及宝石输出端面强度分布花样;研究了改变激励能量及转动红宝石棒的角位置对这些花样的影响。我们发现优质晶体的远场花样有特征方向,随晶体转动而转动,在一定转角下远场花样中心有镶嵌结构及细的干涉条纹,近场花样出现模结构。并得到了近场花样的双孔干涉条纹。本文指出,晶体质量(包括结晶、加工及镀膜)对上述现象有很大影响。根据光学介质波导概念及相干散射机构,本文对上述实验结果作了定性的讨论。

    Distribution of xenon lamp pumping energy in Nd glass rods have been caleulated with a low-speed computer.The calculation results are in basic agreement with the experimental ones.Some problems on improving pumping uniformity are discussed.

    在低速电子计算机上计算了氙灯泵浦光在钕玻璃棒中的分布,计算结果与实验基本一致。讨论了提高泵浦均匀性的几个问题。

    Phase conjugation of backward-and forward-wave produced by degenerate four-wave mixing using a nearly resonantly enhanced nonlinearity in four-level organic dye solutions was investigated. The conversion efficiency of 22% has been obtained in a 2.5×10-5-molar solution of chlorophyll A in methylalcohol with a 5mm interaction length and a pumping energy of ~8mj from SH of a Q-switched Nd:YAG. Degenerate four-wave mixing by two-photon resonant-enhancement in the solution of rhodamine 6G in alcohol was investigated....

    Phase conjugation of backward-and forward-wave produced by degenerate four-wave mixing using a nearly resonantly enhanced nonlinearity in four-level organic dye solutions was investigated. The conversion efficiency of 22% has been obtained in a 2.5×10-5-molar solution of chlorophyll A in methylalcohol with a 5mm interaction length and a pumping energy of ~8mj from SH of a Q-switched Nd:YAG. Degenerate four-wave mixing by two-photon resonant-enhancement in the solution of rhodamine 6G in alcohol was investigated. Measurements were performed which described the dependance of nonlinear reflectivities on the molar concentrations of the media and the intensities of the pumping and object waves. Phase conjugation characteristics of forward-wave in four-wave mixing process were theoretically analysed. Experiments have confirmed the theoretical prediction. The method of quartet degenerate four-wave mixing has been extended to the doublet degenerate casa. Using this method, image conversion from 1.06μm to 5320 A has been realized with a conversion efficiency of 25% in a 5 mm long saturable absorber made of organic dye 9740 solution in diehloroethane. Theoretical analysis shows that using a medium, which is a near resonant absorber for the infrared object wave but transparent for the visible reconstruction wave, the conversion efficiency may be well in excess of unity.

    研究了近共振增强的四能级系统有机染料溶液中简并的四波混频后向反射波及前向波的位相复共轭特性。用有效长度为5mm,浓度为2.5×10~(-5)mol的叶录素A甲醇溶液作介质,当调QNd:YAG倍频泵浦光的能量为8mj时,非线性反射率为22%。 对于若丹明6G酒精溶液,在相同条件下的反射率为10%。用象差板检证了位相复共轭特性。用调QNd:YAG激光辐射作泵浦源,研究了若丹明6G酒精溶液双光子共振增强的简并的四波混频作用。当介质浓度为10~(-4)克分子,有效长度为5mm,泵浦光能量为70mj时,非线性反射率达14%。测量了非线性反射率与介质浓度及入射物波与后向反射波的强度的关系曲线。理论分析了四波混频前向波的位相复共轭特性,用调QNd:YAG倍频激光作泵浦源,若丹明6G酒精溶液作介质,实验上证实了理论的预言。另外,把四重简并的四波混频推广到二重简并的情况。用若丹明6G酒精溶液作介质,实现了由6300A到5320A的象转换。用9740有机染料二氯乙烷饱和吸收溶液作介质,实现了1.06μm到5320A的象转换。当介质长度为5mm,泵浦光束的能量为5mj时,后者的转换效率为25%。理论分析表明,用对红外近共振吸收,而...

    研究了近共振增强的四能级系统有机染料溶液中简并的四波混频后向反射波及前向波的位相复共轭特性。用有效长度为5mm,浓度为2.5×10~(-5)mol的叶录素A甲醇溶液作介质,当调QNd:YAG倍频泵浦光的能量为8mj时,非线性反射率为22%。 对于若丹明6G酒精溶液,在相同条件下的反射率为10%。用象差板检证了位相复共轭特性。用调QNd:YAG激光辐射作泵浦源,研究了若丹明6G酒精溶液双光子共振增强的简并的四波混频作用。当介质浓度为10~(-4)克分子,有效长度为5mm,泵浦光能量为70mj时,非线性反射率达14%。测量了非线性反射率与介质浓度及入射物波与后向反射波的强度的关系曲线。理论分析了四波混频前向波的位相复共轭特性,用调QNd:YAG倍频激光作泵浦源,若丹明6G酒精溶液作介质,实验上证实了理论的预言。另外,把四重简并的四波混频推广到二重简并的情况。用若丹明6G酒精溶液作介质,实现了由6300A到5320A的象转换。用9740有机染料二氯乙烷饱和吸收溶液作介质,实现了1.06μm到5320A的象转换。当介质长度为5mm,泵浦光束的能量为5mj时,后者的转换效率为25%。理论分析表明,用对红外近共振吸收,而对可见辐射是透明的介质可以实现高效率的红外象转换。这种红外象转换的方法还具有实时、快响应等优点。

     
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