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泵浦光束
相关语句
  pump beam
    ASTIGMATIC COMPENSATION OF THE PUMP BEAM IN A CW TI:SAPPHIRE LASER PUMPED BY AN ARGON LASER
    氩激光纵向激励的连续钛宝石激光系统中泵浦光束的像散及补偿
短句来源
    The Influence of Pump Beam Quality on Stimulated Raman Scattering
    泵浦光束质量对受激拉曼散射的影响
短句来源
    Slope effi-ciency of the Ti:sapphire laser increased from 21.9% to 24.8 with astigmatically compensated pump beam in the experiment.
    实验中泵浦光束的像散得到补偿后,系统的斜坡效率由原来的21.9%提高到24.8%。
短句来源
    The self-enhancement of diffraction was obtained due to the light crawling effect by reducing the thickness of the Ce: Fe: LiNbO3 and by increasing the diameter of the pump beam.
    减小Ce:Fe:LiNbO3晶片的厚度,扩大泵浦光束直径,由于光爬行效应晶体产生衍射自增强。
短句来源
    By changing the distribution of the pump beam in the gain medium and the positions of the Cr4+:YAG crystal in the cavity,the control of the pulse widths is realized easily.
    通过改变泵浦光束在激光晶体内的分布以及Cr4+:YAG晶体在腔内的位置,实现了LD泵浦Nd:GdVO4晶体Cr4+:YAG被动调Q激光器的脉宽控制。
短句来源
  pump beam
    ASTIGMATIC COMPENSATION OF THE PUMP BEAM IN A CW TI:SAPPHIRE LASER PUMPED BY AN ARGON LASER
    氩激光纵向激励的连续钛宝石激光系统中泵浦光束的像散及补偿
短句来源
    The Influence of Pump Beam Quality on Stimulated Raman Scattering
    泵浦光束质量对受激拉曼散射的影响
短句来源
    Slope effi-ciency of the Ti:sapphire laser increased from 21.9% to 24.8 with astigmatically compensated pump beam in the experiment.
    实验中泵浦光束的像散得到补偿后,系统的斜坡效率由原来的21.9%提高到24.8%。
短句来源
    The self-enhancement of diffraction was obtained due to the light crawling effect by reducing the thickness of the Ce: Fe: LiNbO3 and by increasing the diameter of the pump beam.
    减小Ce:Fe:LiNbO3晶片的厚度,扩大泵浦光束直径,由于光爬行效应晶体产生衍射自增强。
短句来源
    By changing the distribution of the pump beam in the gain medium and the positions of the Cr4+:YAG crystal in the cavity,the control of the pulse widths is realized easily.
    通过改变泵浦光束在激光晶体内的分布以及Cr4+:YAG晶体在腔内的位置,实现了LD泵浦Nd:GdVO4晶体Cr4+:YAG被动调Q激光器的脉宽控制。
短句来源
  “泵浦光束”译为未确定词的双语例句
    Main results are as follows:(1) The factors including parameter of focused beams and parameter of medium in effecting SBS threshold were analyzed in detail.
    (1)、分析了影响SBS阈值的因素,详细讨论SBS阈值随聚焦系统参数、泵浦光束参数、介质的参数的变化关系。
短句来源
    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.
    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%。
短句来源
    Self-pumped phase conjugation in a-face titled-cut Ce-doped (KNa)0.1 (Sr0.75Ba0.25)0.9Nb2O6crystal was demonstrated without external reflection mirrors, pumping beam and applied field, and phase conjugation reflectivities as high as 25% were measured.
    利用(KNa)_(0.1)(Sr_(0.75)Ba_(0.25))_(0.9)Nb_2O_6掺Ceα面斜切晶体实现了无外场、无外反射镜、无外加泵浦光束自泵浦连续波位相共轭,其相共轭反射率达25%,阈值功率小于0.03w/cm~2。
短句来源
    INcreasing beam diameter of the pump light, the angle range 2θ of gain Г,may beextended.
    增大泵浦光束直径,可使指数增益的2θ角度响应范围拓宽。
短句来源
    By the ray tracing in the channel waveguide,the dependency of the launching efficiency on the relative position of the pumping beam to the waveguide is analyzed and the coupling conditions are optimized.
    通过几何光学法追迹泵浦光线在波导中的传播,系统地分析了泵浦光束与波导相对位置变化对泵浦耦合效率的影响,进而确定最佳耦合条件。
短句来源
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  pump beam
This paper presents a theoretical study of second-harmonic generation (SHG) by a focused pump beam in the interior of an isotropic medium, experimentally observed earlier.
      
According to this model, after passing through a phase-disturbed medium or an aberration plate, the input pump beam can be resolved into two portions: a stronger undisturbed regular portion and a weaker phase-disturbed irregular portion.
      
Interference is observed between the spontaneous parametric radiation from two nonlinear crystals separated by a macroscopic air gap and excited in series by a common pump beam.
      
The interference of spontaneous parametric radiation was observed from two nonlinear crystals separated by a macroscopic layer of a linear substance and excited by a common pump beam.
      
This effect is governed by the spatiotemporal shape of the pump beam intensity (the Gaussian profile), by a high SRS gain, and by the processes of diffraction.
      
更多          
  pump beam
This paper presents a theoretical study of second-harmonic generation (SHG) by a focused pump beam in the interior of an isotropic medium, experimentally observed earlier.
      
According to this model, after passing through a phase-disturbed medium or an aberration plate, the input pump beam can be resolved into two portions: a stronger undisturbed regular portion and a weaker phase-disturbed irregular portion.
      
Interference is observed between the spontaneous parametric radiation from two nonlinear crystals separated by a macroscopic air gap and excited in series by a common pump beam.
      
The interference of spontaneous parametric radiation was observed from two nonlinear crystals separated by a macroscopic layer of a linear substance and excited by a common pump beam.
      
This effect is governed by the spatiotemporal shape of the pump beam intensity (the Gaussian profile), by a high SRS gain, and by the processes of diffraction.
      
更多          


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...

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。

In this paper a way of generating high efficiency and diffraction-limited dye laser beam is proposed. In this dye laser, Rhodamine 6G solution in alcohol is pumped by counterpropagating pumping beams in four-wave mixing. The 5320A laser radiation from second harmonic of the output of a Nd:laser system consisting of a Q-switched Nd: YAG oscillator and Nd:glass amplifiers is used as the pumping source. The Rhodamino 6G solution is used as both the active medium of the dye laser and the nonlinear medium for four-wave...

In this paper a way of generating high efficiency and diffraction-limited dye laser beam is proposed. In this dye laser, Rhodamine 6G solution in alcohol is pumped by counterpropagating pumping beams in four-wave mixing. The 5320A laser radiation from second harmonic of the output of a Nd:laser system consisting of a Q-switched Nd: YAG oscillator and Nd:glass amplifiers is used as the pumping source. The Rhodamino 6G solution is used as both the active medium of the dye laser and the nonlinear medium for four-wave mixing. The concentration of the Rhodamine 6G solution in alcohol ia about 5×10-5 mole. Using pumping intensity of about 5×106 W/cm2, the energy conversion efficiency of the pumping beam to dye laser beam is about 50%, and the beam divergence of the laser output is near diffraction-limited. The good quality of the output beam of the new type dye laser is analysed theoretically.

本文提出采用共振增强四波混频的相反传播的泵浦光束泵浦若丹明6G酒精溶液,获得高效率衍射极限输出激光束的方法。使用KDP晶体调QNd:YAG振荡器和Nd:玻璃放大器激光系统,经KDP晶体倍频的5320埃激光作为泵浦光。浓度为5×10~(-5)克分子的若丹明6G酒精溶液作为染料激光器的激活介质,它同时作为四波混频的非线性介质。当泵浦功率密度为5×10~6瓦/厘米~2时,得到转换效率达50%以上,光束发散角为衍射极限。本文对这种新型染料激光器的高质量输出特性作了理论分析。

The effects of ground state depletion of atoms on the characteristics of stimulated Raman scattering in metal vapors are studied by simultaniously solving the rate-equation of the atom energy levels related in the Raman scattering, and the equations describing the energy-conversion from the focused pump laser pulses to the Raman down-converted pulses. The ground state of metal atoms are depleted most strongly in the regions near the focal spots of the pump beams because of the higher intensities of light and...

The effects of ground state depletion of atoms on the characteristics of stimulated Raman scattering in metal vapors are studied by simultaniously solving the rate-equation of the atom energy levels related in the Raman scattering, and the equations describing the energy-conversion from the focused pump laser pulses to the Raman down-converted pulses. The ground state of metal atoms are depleted most strongly in the regions near the focal spots of the pump beams because of the higher intensities of light and smaller available medium volume in thosa regions. This will result in the unsymmetrical shapes of the Raman-shifted pulses for the front and rear edges, and will reduce the energy-conversion efficiency.

将受激Raman散射原子基态及终态粒子数变化的速率方程与聚焦的泵浦光束及喇曼光束功率变化的微分方程组联立并进行数值求解;研究了金属蒸气受激Raman散射过程中基态粒子数的抽空现象及其对Raman能量转换过程的影响。

 
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