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harmonic conversion     
相关语句
  谐波转换
     A theoretical analysis is presented for third harmonic conversion in KDP (KH_2PO_4) for type Ⅰ/ type Ⅱ angle-detuning scheme of high-intensity laser.
     研究了以Ⅰ/Ⅱ类角度失谐设置方式下,高强度激光在KDP晶体中的谐波转换问题。
短句来源
     Calculation of Stimulated Raman Scattering of High-Power Laser Driver for ICF in Harmonic Conversion
     ICF驱动器谐波转换晶体中受激拉曼散射的数值计算
短句来源
     In diode-pumped all-solid-state laser system, nonlinear optical double frequency crystal KTP, which cut at Ⅱ-type phase match condition, not only oriented satisfied with fundamental light's polarization condition, but also met its with half wave plate condition, and only these conditions are all fulfilled, crystal would have the maximal harmonic conversion efficiency.
     非线性晶体KTP采用Ⅱ类相位匹配腔内倍频时,不仅要求晶体满足基频光的偏振匹配条件,而且所选用的晶体要求符合λ/2波片的条件,才能使晶体的谐波转换效率达到最佳。
短句来源
     In order to improve harmonic conversion efficiency and eliminate walk-off effect,temperature field of nonlinear crystal was accurately calculated.
     为了提高谐波转换效率和消除温升引起的晶体走离效应,对于非线性晶体温度场分布特点进行了分析与计算.
短句来源
     The mechanisms of CLBO crystal using for high efficiency third harmonic conversion are discussed, and the basic characters of high efficiency harmonic conversion on theory is analyzed. The numerical simulation of basic parameters of third harmonic conversion for CLBO crystal on the high power laser facility are presented. Compared the characters of third harmonic conversion with KDP crystal.
     讨论了CLBO晶体用于高效率三倍频的机理,从理论上分析了产生高次谐波转换的基本特性,对CLBO晶体在高功率激光装置中产生高效率谐波转换的基本参数进行了数值模拟计算,并与KDP晶体三次谐波转换的特性进行了比较,给出了CLBO晶体产生高效率谐波转换的基本条件。
短句来源
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  次谐波转换
     Relationship of Third Harmonic Conversion Efficiency and Phase Ripples for High-Intensity Laser
     强激光三次谐波转换效率与相位扰动的关系
短句来源
     KTP gray-tracking caused by the high power laser limits the further increase of the second harmonic conversion efficiency.
     高功率激光在KTP晶体中引起的“灰迹”(gray -tracking)现象 ,影响了二次谐波转换效率的进一步提高。
短句来源
     We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.
     还讨论了泵浦束的发散角对二次谐波转换效率的影响。
短句来源
     It found that this design can increase the third harmonic conversion efficiency of broad bandwidth,but the distance between two triplers has an important impact on the third harmonic conversion efficiency in the experiment.
     实验观察到这种方案可以有效提高宽带激光三次谐波转换效率,但混频晶体之间的距离对宽带三次谐波转换效率影响明显。
短句来源
     CHARACTER RESARCH OF THIRD HARMONIC CONVERSION WITH CLBO CRYSTAL
     CLBO晶体用于三次谐波转换的特性研究
短句来源
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  “harmonic conversion”译为未确定词的双语例句
     For the bandwidth of 1.11 nm and the incident fundamental intensity between 3 GW/cm~2 and 8 GW/cm~2, the third harmonic conversion efficiency is 60%~70%, which has increased 30%~40% compared with that using the scheme of one doubler and one mixer.
     经优化后,带宽1.11nm时入射基频光强在3~8GW/cm2范围内的三倍频转换效率可保持在60%~70%,比采用单倍频单混频方案时增大了30%~40%。
短句来源
     For the incident fundamental field with the bandwidth of 11.2 nm and the intensity of 2~6 GW/cm~2,the third harmonic conversion efficiency of about 60 % can be achieved,which has increased about 40 % compared with the case without ASD method.
     经方案优化后,当入射基频光带宽11.2nm、光强2-6GW/cm2时的三倍频光转换效率可达到60%左右,比不采用ASD时的三倍频光转换效率提高了40%左右。
短句来源
     The third harmonic conversion of Type Ⅰ/Type Ⅱ angle duning scheme of KDP is affected by aberrations of fundamental waves is studied, including the nonuniform distribution across the aperture of refactive index, phase mismatch and etc.
     研究了KDP晶体TypeⅠ /TypeⅡ角度匹配的三倍频方案中 ,离散效应和基波位相畸变对三次谐波的影响。
短句来源
     EXPERIMENT OF HIGH EFFICIENCY THIRD HARMONIC CONVERSION IN XINGGUANG LASER FACILITY
     高功率激光的三倍频高效转换实验
短句来源
     The results show that using the scheme of cascade crystals can improve the third harmonic conversion efficiency and increase the dynamic range of the broadband laser tripling.
     研究结果表明,使用两块级联的KDP晶体作为混频晶体,不仅能有效地提高带宽较宽条件下三倍频光的转换效率,还可以显著增大宽带三倍频的动态范围。
短句来源
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  harmonic conversion
The solution assumes a nondepleted pump and results for a numerical computation of second-harmonic conversion efficiency for a highly efficient process are presented.
      
A third-harmonic conversion efficiency of up to 4×10-4 was achieved for one of the dyes investigated (1,3,3,1',3',3'-hexamethylindocarbocyanine iodide in hexafluoroisopropanol).
      
Variation of the minimum pulsewidth with intracavity bandwidth and the harmonic conversion efficiency is presented in the form of graphs.
      
In this report we examine the second harmonic conversion characteristics of a 3.8?mm thick birefringently phase matched Yb:YAB crystal which is then examined in more detail by slicing into four thinner sections each approximately 400?μm thick.
      
We show that the double grating feedback improves the second harmonic conversion efficiency by several orders of magnitude as compared to the freely running laser.
      
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In this paper, the variation of the phase matching angle and the effective nonlinear coefficient versus the fundamental wavelength in a second harmonic generation of the lithium formate monohydrate (LiCOOH.H2O) of the mm 2 type crystal are calculated. It is found that there is one (or two) optimum phase matching angle (?, ?) for each fundamental wave, at which the second harmonic conversion efficiency is highest. Fitted formula for the variation of the phase matching angle versus the fundamental wavelength...

In this paper, the variation of the phase matching angle and the effective nonlinear coefficient versus the fundamental wavelength in a second harmonic generation of the lithium formate monohydrate (LiCOOH.H2O) of the mm 2 type crystal are calculated. It is found that there is one (or two) optimum phase matching angle (?, ?) for each fundamental wave, at which the second harmonic conversion efficiency is highest. Fitted formula for the variation of the phase matching angle versus the fundamental wavelength is obtained.Second harmonic generation for 0.53?, 0.35? and 0.266? are observed from the crystals cuted at the computative angle.

本文计算了mm2型—水甲酸锂晶体的相位匹配角和有效非线性系数随基波波长变化的规律。发现对每个基波都存在着一个或两个最佳相位匹配角(θ,φ),并作出了θ,φ随基波波长变化的拟合公式。按计算所得的角度切割的—水甲酸锂倍频元件分别得到了0.53μ、0.35μ和0.266μ的倍频光.

A new Nd:YAG laser system is presented which offers wide application for diagnosing soft x-ray picosecond streak/framing cameras, nonlinear optics and other ultrafast phenomenna. Some very useful results of the cameras have been got by using this system. Finally we discuss some parameters of affecting harmonic conversion efficiency, such as phased-matched direction, maximal direction of the effective nonlinear coefficient and tureshold power. By computing simulation, we obtained optimal values of the parameters...

A new Nd:YAG laser system is presented which offers wide application for diagnosing soft x-ray picosecond streak/framing cameras, nonlinear optics and other ultrafast phenomenna. Some very useful results of the cameras have been got by using this system. Finally we discuss some parameters of affecting harmonic conversion efficiency, such as phased-matched direction, maximal direction of the effective nonlinear coefficient and tureshold power. By computing simulation, we obtained optimal values of the parameters of the harmonic device. Thus, harmonic conversion efficiency of device has further up.

本文叙述了一种新型的Nd:YAG激光器倍频系统,它主要用于诊断皮秒扫描/分幅变象管的静态及动态特性,亦可用于非线性光学和其它超快现象。最后讨论了影响谐波器件转换效率的一些参数。通过计算机模拟确定了这些参数的最佳值,从而使谐波器件的转换效率得到进一步提高。

in this paper we have proposed and studied the following 3 basic problems in beam propagation:1) defination of beam quality and its measurements;2) arbitrary beam propagation through real optical systems and 3) nonlinear propagation of real laser beams.Here,we are interested in the methods to solve these problems.We have analytically investigated the beam quality by assuming the phase aberrations as Gaussian random variables.For the nonlinear harmonic conversion of real laser beams,we have developed a...

in this paper we have proposed and studied the following 3 basic problems in beam propagation:1) defination of beam quality and its measurements;2) arbitrary beam propagation through real optical systems and 3) nonlinear propagation of real laser beams.Here,we are interested in the methods to solve these problems.We have analytically investigated the beam quality by assuming the phase aberrations as Gaussian random variables.For the nonlinear harmonic conversion of real laser beams,we have developed a theory by applying the spatial spectrum analysis to the nonlinear coupling.

提出并研究了光束传输领域有待解决的三类基本问题:1)光束质量的定义及实际测量方法比较;2)任意光束经实际光学系统的传输;3)任意实际光束的非线性传输。主要着重于提出解决问题的方法,具体地以高斯随机变量模拟位相畸变,解析地分析了光束质量与位相畸变特征量间的关联;以按空间频谱展开方法,处理任意光束的非线性谐波转换过程。

 
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