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third harmonic conversion
相关语句
  三次谐波转换
     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
     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
     Chirp Matched Third Harmonic Conversion for Broad-Band Lasers
     宽频带激光的啁啾匹配型三次谐波转换
短句来源
     Using type Ⅰ/type Ⅱ angle-detuning scheme for third harmonic generation,the effect of phase ripple on the characteristic of third harmonic conversion is considered and calculated when the input fundamental field is super-Gaussian beam.
     采用Ⅰ /Ⅱ角度失谐的三倍频方案 ,以超高斯光束作为入射基频光场 ,建立了位相扰动光束三次谐波转换的理论模型 ,并作数值模拟计算。
短句来源
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  三倍频
     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。
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  “third harmonic conversion”译为未确定词的双语例句
     A numeric simulation on high power large dynamic high ef ficiency third harmonic conversion
     高强度大动态范围高效率三倍频转换的数值模拟
短句来源
     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
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  third harmonic conversion
Third harmonic conversion efficiencies in these metallocomplexes were measured to be 8×10-7 and 5×10-7 respectively.
      


AbstractHigh power short wavelength broad-band laser has a lot of advantages for plasma experi- ments,such as increasing the absorption,improving target illumination uniformity and so on. Traditional third harmonic conversion scheme with KDP,however,can only be used for laserbandwidth less than 0.2nm. Therefore, to develop harmonic conversion techniques on broad- bandlaser is very important for ICF and x- ray laser research.For this purpose, new conversionschemes such as angular spectral dispersion(ASD)and...

AbstractHigh power short wavelength broad-band laser has a lot of advantages for plasma experi- ments,such as increasing the absorption,improving target illumination uniformity and so on. Traditional third harmonic conversion scheme with KDP,however,can only be used for laserbandwidth less than 0.2nm. Therefore, to develop harmonic conversion techniques on broad- bandlaser is very important for ICF and x- ray laser research.For this purpose, new conversionschemes such as angular spectral dispersion(ASD)and crystal quadrature have been proposed. Based on our calculated results of the spectral and angular acceptanee for LBO crystal,inthis paper we have proposed to use LBO in traditional conversion scheme for efficientbroad- band laser harmonic conversion. We have studied all the phase- matching possibilities for frequency doubling and triplingbased on Sellmeier's equation. In our calculation,only the phase- matchings in principal planesare considered, since their large nonlinear coefficients.We have found that type Ⅰdoubling andtripling are only possible in xy plane,while typeⅡdoubling and tripling are in yz plane asshown in Table 3.By numericddl calculations of coupled wave equations,we found that only 4mmthickness is required for LBO when fundamental intensity is around 1.5GW/cm ̄2,while 14mmthickness required for KDP crystal.The s pectral and angular acceptance for all interactions in4mm thick LBO at 1.054μm are calculated as shown in Table 5.the values for KDP are alsogiven as comparisons.As a md,in result,tripling spectral acceptance of LBO are much larger thanthose of KDP,efficient tripling can be achieved for bandwidth of about Inm in traditionaltripling scheme with LBO crystal.

实现宽带高功率钕玻璃激光高效谐波转换的关键在于选择合适的非线性晶体和技术。文中给出了波长为1.054μm的基波光脉冲在LBO晶体中的各类倍频及三倍频相位匹配,着重分析了LBO的光谱接受范围和角度接受范围。结果表明,采用成熟的谐波转换技术,选用LBO晶体,可实现lnm左右的宽带高功率激光的高效三倍频转换。

AbstractUsing short wavelength laser to drive ICF capsules have been recognized for some time,it can increase the efficient absorption of laser energy and reduce hot electrons of fuel beingpreheating.We have made third harmonic conversion experiments on Xingguang laser facility.The polarization-mismatch scheme with twoφ80mm ×14mm potassium KDP crystals isadopted;In experiment,we selected design scheme,optinuzed crystals length by theorycalculation and built up a three dimention rack for crystals at first,then...

AbstractUsing short wavelength laser to drive ICF capsules have been recognized for some time,it can increase the efficient absorption of laser energy and reduce hot electrons of fuel beingpreheating.We have made third harmonic conversion experiments on Xingguang laser facility.The polarization-mismatch scheme with twoφ80mm ×14mm potassium KDP crystals isadopted;In experiment,we selected design scheme,optinuzed crystals length by theorycalculation and built up a three dimention rack for crystals at first,then converse thefoundmental wave.When input foundmental wave intensity to the first crystal is more than0. 7GWl/cm ̄2,external third haimonic conversion energy efficiency is about 60%, second harmonicconversion is about 70%,the maximum is 66.8% for third harmonic and 76.8% forsecond-harmonic.Some factors effected third harmonic conversion have been researched.Basing on all of these results,we can get high effciency and high stability third-harmonicconverslon.

利用两块φ80mm×14mmKDP晶体,采用“偏振失配”方案在“星光”装置φ70输出光路上,进行了三倍频实验。在入射光功率密度约为1GW/cm ̄2时,获得最高的二倍频外部能量转换效率为76.9%,三倍频最高外部能量转换效率为66.8%,并且转换重复性和稳定性很好。同时,也通过实验研究了影响三次谐波转换的诸因素。

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. Provided basic conditions using for to generate high efficiency third harmonic conversion...

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. Provided basic conditions using for to generate high efficiency third harmonic conversion of CLBO 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。

 
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