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probe beam     
相关语句
  探测束
     Effect of Post-lens Upon Signal Features of Pulsed Thermal Lens With Unfocused Probe Beam
     池后透镜对探测束非聚焦脉冲热透镜信号特性的影响
短句来源
     Theoretical analysis for CW crossed-beam thermal lens with unfocused probe beam
     探测束非聚焦CW交叉束热透镜的理论分析
短句来源
     A portion of the main beam was split off to form the probe beam. This beam was frequency doubled with a KDP crystal, frequency shifted to 630nm by backward Raman scattering in DMSO, and finally frequency doubled in a BBO crystal. The probe pulse wavelength was 3l5nm, pulse width 10-20ps, and pulse energy greater than 0.2mJ.
     我们将主激光分出一部分做为探测束,探测束经过KDP晶体倍频,然后用DMSO液体后向喇曼散射移频到630nm,最后经BBO晶体倍频,最终获得的探测束波长为315nm,脉冲宽度为10~20ps,脉冲能量大于0.2mJ。
短句来源
     Probe Beam Deflection Spectroelectrochemistry
     探测束偏转光谱电化学
短句来源
     In this paper, the theory of pulsed photothermal deflection spectroscopy that accounts for both the propagaton of excitation beam and the finite size of the probe beam is presented and compared with the existed theoretical models.
     本文给出了聚焦激光束加热时脉冲光热偏转光谱的理论,考虑了加热束传输特性和探测束有限尺寸的影响。
短句来源
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  探针束
     Using Raman compression cascade system with 1 054 nm incident light, a probe beam that has a 308 nm wavelength, 28 ps pulse duration and 1 mJ energy was obtained.
     308nm光具有波长短、亮度高、脉冲时间短、相干性好的优点,作为探针束诊断冕区产生的等离子体电子密度,可以与高功率激光装置打靶激光同步,实现有效地脉冲压缩,同时避免等离子体中谐波分量的干扰。
短句来源
  探测光束
     Concentric diffraction rings with bright center in the far field and dark center in the near field of the probe beam were experimentally observed when a strong pump laser beam (526?nm) and a weak probe laser beam (632.8?nm) cross under the nonlinear medium film (Polypyrrylarylenemethine/polyvinyl film).
     实验发现当一束较强的抽运激光 (5 2 6nm)与一束较弱的探测激光 (6 32 8nm)相交通过非线性介质薄膜 (聚吡咯甲烯 /聚乙烯醇薄膜 )时 ,在探测光束的远场产生了中心为亮斑 ,近场中心为暗斑的多个同心衍射环 .
短句来源
     The measuring deviation of the method comparing with probe beam method is within the accuracy that is in the order of ±10 %. It is less than the unstable-resonator method that is in the order of ±20 %.
     与探测光束法测量的偏差为±10%,要小于非稳腔法的±20%。
短句来源
     Considering the influence of the probe beam size on the modulated photothermal reflectance(MPR) signal,a three-dimensional theoretical model of laser-induced MPR for the thin film-on-substrate system is presented in this paper.
     在考虑探测光束光斑尺寸对调制光热反射(MPR)信号影响的基础上,建立了三维的薄膜-衬底体系的激光光热反射理论模型。
短句来源
     For large probe beam divergence the SNR is relatively poor, and even a streaky signal process is predicted if a point target is scanned across.
     系统发射的探测光束发散角较大时,信噪比较差,且光束扫过点目标可能出现条纹状信号过程.
短句来源
     The laser probe beam is set at the positions which are 4mm,7mm,10mm below the atoms cloud,the short-distance time-of-flight(TOF) Absorption signals are obtained during the falling of atoms. The average temperature of cold atoms is obtained by numerical simulating.
     通过在冷原子团下方4 mm,7 mm,10 mm三处设置圆柱形探测光束,在原子自由下落过程中获得了短程飞行时间(TOF)吸收信号,通过数值拟合得到了冷原子的温度。
短句来源
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  “probe beam”译为未确定词的双语例句
     A NOVEL IN-SITU SPECTROELECTROCHEMICAL TECHNIQUE WITH PROBE BEAM DEFLECTION:FOR STUDY OF THE ION EXCHANGE BETWEEN FILMS ON ELECTRODE SURFACE AND SOLUTIONS
     A NOVEL IN-SITU SPECTROELECTROCHEMICAL TECHNIQUE WITH PROBE BEAM DEFLECTION:FOR STUDY OF THE ION EXCHANGE BETWEEN FILMS ON ELECTRODE SURFACE AND SOLUTIONS
短句来源
     All-optical switching of the organic molecule with excited state proton transfer effect-3-hydroxyflavone(3-HF) in ethanol was investigated by using third-harmonic generation(355 nm) of a mode-locked Nd:YAG laser as a pump beam and a cw He-Ne laser(632.8 nm) as a probe beam.
     利用YAG锁模激光器的三倍频355nm激光做泵浦光,He Ne的632.8nm激光做探测光,研究了具有激发态质子转移效应的有机分子3 羟基黄酮(3 HF)乙醇溶液的全光光开关效应。
短句来源
     The principles of the experiment are demonstrated, as well the configuration and characteristics of the nonlinear medium. The influence of the angle between pumping light and probe beam on the experimental results is studied. The intensity of conjugate signals under certain conditions is recorded, and the change and mechanism of the intensity of conjugate signals and reflective coefficient are analyzed.
     介绍了在近代物理实验课中开设甲基橙掺杂聚乙烯醇薄膜的简并四波混频特性的实验设计,论述了实验原理和实验中采用的非线性介质的结构与性能,研究了泵浦光与探测光之间的夹角等实验条件对实验结果的影响,得到了相位共轭光强度与探测光和泵浦光的关系,分析了实验中产生的信号光强度和反射系数的变化及产生这种变化的机制.
短句来源
     Its pump beam is super wide harmonious laser pulse, and probe beam is white light pulse.
     该装置泵浦光为超宽调谐的光脉冲,探测光为白光,用于研究样品就可以获得很丰富的信息。
短句来源
     This experimental setup contains a probe beam at 632.8 nm and a pump beam at 532 nm with linear-circular polarization.
     实验用532 nm光作为抽运光,632.8 nm的He-Ne激光作为探测光。
短句来源
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  probe beam
It is shown that the noise spectrum displays a double M-shape noise profile resulted from the conversion of phase noise of probe beam.
      
The sensitivity of the polarimetric method under technical and shot-noise fluctuations of the optical power of the probe beam is analyzed, and optimal settings of the polarimeter are found.
      
The self-action in the presence of competing diffraction, nonlinear dispersion, and radiation absorption in the system was qualitatively analyzed; in particular, the conditions for self-focusing of a probe beam were determined.
      
The method uses excitation of surface electromagnetic waves (SEWs) by a linearly polarized probe beam incident on the surface under study and compensation for the phase shift between the p and s components arising upon the SEW excitation.
      
Along with the stationary effect, a temporal (transient) change in the polarization of the probe beam is also observed, which arises only during UV irradiation and vanishes when the irradiation is over.
      
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In this paper, degenerate four-wave mixing was studied in various transparent optical media. Third-order susceptibility has been determined by the ratio of the input probing beam in tensity to the backward wave intensity in four-wave mixing. The results of some solvents and glass media are presented.

本文研究了各种透明介质的简并的四波混频作用。通过测量后向反射波与入射波的强度比,可以确定介质的三阶极化率。并给出了各种液体介质和玻璃的测量结果。

This paper describes a method of "optical tracing" used to measure the energy distribution on focal plane of an imperfect processed optical system. It is similar to Hartmann method. High brightness He-Ne laser with TEM00 mode output is used as a probing beam. A parallel beam passes through a movable aperture and is focused by a local part of optical system to be measured. Then we determine the position of central point of Airy spot on the focal plane. The spatial coordinate of the point is magnified...

This paper describes a method of "optical tracing" used to measure the energy distribution on focal plane of an imperfect processed optical system. It is similar to Hartmann method. High brightness He-Ne laser with TEM00 mode output is used as a probing beam. A parallel beam passes through a movable aperture and is focused by a local part of optical system to be measured. Then we determine the position of central point of Airy spot on the focal plane. The spatial coordinate of the point is magnified to 40 X by an objective and read out by microscope. Coordinate of each central point of Airy spot corresponding to each local part is obtained if the aperture can be moved in the whole optical system. In the case that the optical system is divided into m parts by the movable aperture, there will be m points on focal plane.

介绍了测量加工欠完善光学系统焦平面能量分布的“光线追迹”法。它类似于哈特曼方法,用该法测量了用于激光等离子体实验的非球面-球面透镜的焦斑大小及能量分布,为改进透镜加工及计算靶面上的能量密度提供了依据。

The convection of the gain medium is a decisive factor for large increase in power output of gas lasers. The present analysis shows that both the saturation intensity and the laser power density (or the small-signal gain coefficient) by which CW laser is characterized increase nonlinearly with the flow speed and tend to the respective limiting values. It is also shown that the increment of the saturation intensity does not go beyond about 10 times, and a large increase in power density is caused by the accumulation...

The convection of the gain medium is a decisive factor for large increase in power output of gas lasers. The present analysis shows that both the saturation intensity and the laser power density (or the small-signal gain coefficient) by which CW laser is characterized increase nonlinearly with the flow speed and tend to the respective limiting values. It is also shown that the increment of the saturation intensity does not go beyond about 10 times, and a large increase in power density is caused by the accumulation of excited energy in the flowing gas. These results are not the same as those of the currently accepted theory which predicts that the saturation intensity increase linearly and unlimitedly with flow speed, and a large increase in power density is due to a large increase in the saturation intensity. The present quantitative results of the variation of the saturation intensity with the gas flow transient time are consistent with the experimental data of the flowing CO2 gas lasers, where the gas flow transient time denotes the time required for the flowing gas to move across the gas gain region, or the probing-beam section.

介质流动对于气体激光功率输出的大幅度提高,起着决定性的作用。分析表明:表征连续波激光的饱和强度和光功率密度(或小信号增益系数)均随流速而非线性地增大,并趋向各自的极限值;饱和强度的增加量约不超过10倍;光功率密度的大幅度增加起因于激励能在气流中的累积。这些结论与常用理论关于饱和强度随流速线性且无限地增大,光功率密度增大起因于饱和强度增大的结论并不相同。本文关于饱和强度随气流渡越时间变化的定量结果与流动CO_2气体激光饱和强度的测试结果相符。

 
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