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optical optical
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  光光
     The laser threshold is about 390 mW, the optical optical conversion efficiency and slope efficiency are 13% and 26% respectively.
     激光器阈值为 380mW ,光光转换效率为 13% ,斜率效率为 2 6 %。
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     The experiment of pumping Nd∶ YAG solid state laser by the diode is carried out. The output power is 11.8 W with single transverse mode and 30% optical optical efficiency at pumping power of 40 W.
     用该激光器进行了抽运Nd∶YAG固体激光实验 ,在抽运功率为 40W时 ,获得 11 8W单横模固体激光输出 ,光 光效率约为 30 %。
短句来源
     A maximum green power of 85 W was generated at 20.4 kHz repetition rate and 230 ns pulse width when pumped current of laser diodes was 17.3 A with compensating phase mismatch by angle departuring and strong cooling big KTP crystal, leading to ±1.03% instability and 9.7% of optical optical conversion efficiency.
     在抽运电流为 17 3A时 ,实现了重复频率为 2 0 4kHz,脉冲宽度 2 30ns,输出功率为 85W的高功率、高重复频率绿光 ( 5 32nm)输出 ,不稳定性为± 1 0 3% ,光 光转换效率为 9 7%。
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  “optical optical”译为未确定词的双语例句
     We have obtained that the optimal reflectivity is 98.3%,optimal curvature radius is 155.6mm,maximal output power is 244.4mW,optical optical efficiency is 42.1%,slope efficiency is 62% and cavity length is 37.4mm.
     得出最佳反射率 98.3% ,最佳曲率半径 15 5 .6 mm,最大输出功率 2 4 4 .4 m W,光 -光效率 4 2 .1% ,斜效率 6 2 % ,腔长 37.4 mm
短句来源
     By using a KTP as a frequency doubling crystal, an energy of 16.8 mJ, pulse width of 5.6 ns green output is achieved, optical optical efficiency is 56 6%.
     通过 KTP晶体腔外倍频 ,获得了单脉冲能量 16 .8m J,脉宽 5.6 ns的绿光输出 ,倍频效率 56 .6 %。
短句来源
     With pulsed optical optical double resonance (OODR) fluorescence excitation spectroscopy Rydberg states of 7Li 2 in the energy region of 35 500-38 000 cm -1 were studied and 146 transitions into the 3 1 Π g state of 7Li 2 were measured.
     我们用脉冲光学 光学双共振荧光激发谱 (OODR) ,测量了在 35 5 0 0~ 380 0 0cm- 1 能量范围内的里德堡态 ,观察到7Li2 31 Πg 态的 10个振动能级。
短句来源
     With about 93 mJ pump energy,an energy of 10 mJ,pulse width of 10 ns pulse is obtained,optical optical efficiency is about 11 %.
     在单脉冲泵浦能量 93m J条件下 ,得到了脉宽 10 ns,能量 10 m J的短脉冲输出 ,光 -光转换效率 11%。
短句来源
     With a type Ⅰ noncritical phase matched LBO crystal as the intracavity frequence doubler in a LD pumped Nd∶YVO 4 laser, 240 mW of 671 nm laser output was obtained with 5.44 W absorbed pump power, the optical optical conversion efficency is 4.4%.
     报道了利用珋类非临界相位匹配的LBO晶体腔内倍频、激光二极管泵浦的NdvYVO4 激光器, 在吸收泵浦功率5.44 W 时, 获得240 m W 的671 nm 激光输出, 光-光转换效率约4.4% 。
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  相似匹配句对
     Optical Adhesive
     光学胶粘剂
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     Optical Chaos
     光学混沌
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  optical optical
The dielectric and optical (optical transmission, small-angle light scattering, birefringence) properties of PMNT-0.2 single crystals and their variation induced by a dc electric field have been studied.
      
The optical optical density for each band of interest was calculated as area under curve.
      
The idea is to make all-optical networks for com munication and use optical-optical-optical links in stead of optical-electrical-optical.
      
There is synergetic use of optical-optical data, and optical-SAR EO data to retrieve level 1 products.
      
This laser has recently produced 452 W of cw output at an optical-optical efficiency of 19.3%.
      
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Optical-optical double resonance multiphoton ionization(OODR-MPI)spectroscopy is a rapidly developing, versatile technique which should find wide applications in both molecular spectroscopy and molecular dynamics. In an OODR-MPI study of CO, we irradiate the static sample cell by 2 pulsed dye laser beams. The first UV laser light ( "pump beam" ) resonantly pumps ground state CO to A~1∏ state via a 2-photon process. Then a second visible laser light ("probe beam") excites CO A~1∏ to B~1∑~+. The excited...

Optical-optical double resonance multiphoton ionization(OODR-MPI)spectroscopy is a rapidly developing, versatile technique which should find wide applications in both molecular spectroscopy and molecular dynamics. In an OODR-MPI study of CO, we irradiate the static sample cell by 2 pulsed dye laser beams. The first UV laser light ( "pump beam" ) resonantly pumps ground state CO to A~1∏ state via a 2-photon process. Then a second visible laser light ("probe beam") excites CO A~1∏ to B~1∑~+. The excited B~1∑~+ molecule further undergoes ionization by absorbing one more UV photon, so the whole process follows a 2+1+1 photon scheme. From the rotationally resolved spectra of B-A (0, 1) band (Fig.3), we find the following peculiar, albeit not unexpected, selection rules for the above 2+1 photon sequential transitions(Fig.4): an O(J+2)or S(J-2) branch excitation of a 2-photon A-X transition will cause only the appearance of P(J) and R(J) branch members in a subsequent 1-photon B-A transition, and the P(J+1) or R(J-1) excitation in A-X will yield only Q(J)in the subsequent B-A. We also show that with the help of these selection rules overlapping spectral lines can be assigned with ease. Within the range of our experimental conditions, the ion yield varies with the square of the pump beam irradiance(Fig.6).it is also found to be proportional to the probe beam intensity at low irradiance and tends to saturate with the increase in probe beam intensity(Fig.7).All these indicate that the A-X transi- tion is the rate-controlling step. The cross section of 2-photon A-X transition is calculated to be~1.1×10~(-49)cm~4 s, while that of the single photon B-A transition is as high as~7.5×10~(-17)cm~2. We have further calcutated the rotational energy transfer cross sections for CO A~1Π state from the intensity ratios of satellite lines to the parent line in the B-A spectra obtained under various pressures. The maximum cross section found is 5 ~2. It becomes smaller as the rotational quantum jump, |ΔJ| ,becomes larger. We find also the propensity rule that, for the A~1Π Λ-doublets, with the same ΔJ, a transition which retains the parity index always has a greater cross section than that with a change in the parity index(cf. Table 1).

用两束脉冲染料激光进行了CO的光学双共振四光子电离,获得了转动分辩的CO A~(1Π)←X~(1Σ~+)和B~(1Σ~+)←A~(1Π)跃迁的光谱。观察到了在此2+1光子相继吸收中特有的选择定则。动力学研究表明CO基态到A~(1Π)态的双光子吸收是速率决定步骤,其吸收截面约为1×10~(-49)cm~4s。还测定了A~(1Π)态的单态转动传能截面。对于宇称指数e守恒、△J×±1的过程的截面约为52;随△J值增大而减小。对相同的△J,e正负变号的过程的截面总是小于e不变过程的截面。

Using optical-optical double resonance multiphoton ionization(OODR-MPI)spectroscopy,we have measured and analyzed the transition pathways,the ion-pair state and the rotational energy relaxation in I_2.In our measurement of the OODR spectra of I_2,using lasrs of wavelength~532nm & 590-610nm,aregular progression with a spacing of 37 cm~(-1)and total energy at 53000cm~(-1)has been recorded.By varing the delay time between the two dye lasers and by measuring the dependence between the MPI signal and...

Using optical-optical double resonance multiphoton ionization(OODR-MPI)spectroscopy,we have measured and analyzed the transition pathways,the ion-pair state and the rotational energy relaxation in I_2.In our measurement of the OODR spectra of I_2,using lasrs of wavelength~532nm & 590-610nm,aregular progression with a spacing of 37 cm~(-1)and total energy at 53000cm~(-1)has been recorded.By varing the delay time between the two dye lasers and by measuring the dependence between the MPI signal and the laser power,the transition pathway of the five-photons ionization is determined to be the(1+2+2)process of F-B-X and the upper resonance state is identified as the highly excited vibrational levels in the F(O~+u) state arising from the ions I~+(~3P(1,0))+I~-(~1S).Finally,the rotational energy relaxation in the B(O~+u)state is measured with the F(O~+u)as the probing state and the broadening of the spectral lines is discussed.

利用光学双共振多光子电离光谱,测量并讨论了I_2分子的多光子跃迁通道、离子对态及转动能量弛豫。通过改变二束染料激光(ω_1:~532nm,ω_2:590~610nm)的相对延迟时间以及测量MPI信号与二束光的功率关系,把I_2的五光子电离确定为(1+2+2)过程,即:电离←离子对态←B态←X态。以B∏(O~+u)作为中间态,对I_2的离子对态进行了测量,把一组能量在53000cm~(-1)附近,间隔为37cm~(-1)的振动序列归属为离子对态中属于I~+(3P_(1,0)+I~-(~1S)组合的F(O~+u)态的高振动激发态。最后,选择F(O~+u)为探测态,测量了B∏(O~+u)态的转动能量弛豫。

Optical techniques are particularuly well suited to industrial inspection in hostile environments. In this paper, we summed up the general methods in industrial optical optical inspection, discussed detailly the special optical techniques used in wire, sheet, 3-D image detection and showed the possible advancement and applied fields in future.

光学检测在恶劣的工作环境下显示了突出的优点。本文综述了工业光学检测的一般途径,详细讨论了线材、板材、三维图象等具体工业问题采用的特殊光学检测方法,及其今后可能的发展和应用领域。

 
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