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second harmonic conversion
相关语句
  二次谐波转换
     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
     Study on the effect of second harmonic conversion on the pulse width
     二次谐波转换对激光脉宽影响的实验研究
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
  “second harmonic conversion”译为未确定词的双语例句
     Second harmonic conversion efficiency of nearly 30% in typeⅠphase matching BBO Crystal has been demonstrated with Ti:sapphire femtosecond laser pulses. Analysis on frequent doubling is presented here in particular with femtosecond laser pulses.
     用互类匹配BBO晶体对近红外波段钛宝石飞秒脉冲激光做倍频实验,取得近30%的转换效率,对飞秒脉冲激光倍频的有关问题进行了分析讨论.
短句来源
     The high fundamental conversion efficiency of 32% and the second harmonic conversion efficiency of 32 2% are reached, by optimizing the design of Ti:sapphire laser system and the focusing system in frequency\|doubling.
     经倍频后输出 2 85mW的蓝光 ,倍频效率可达 32 2 % .
短句来源
     Numerical simulation has been conducted for different parameters under the quasi phase matching condition. The results have shown that the domain duty cycle of one dimensional periodic optical superlattice l/Λ,and the phase variation of second harmonic generation have significant effects on the second harmonic conversion efficiency.
     在准相位匹配条件下对不同参数进行了数值模拟 ,结果表明光学超晶格一个周期内正畴所占比例l/Λ和二次谐波的位相变化对二次谐波的转换效率具有较大影响。
短句来源
  相似匹配句对
     Second .
     二、破自造论。
短句来源
     Second,
     二是对于?
短句来源
     On the Nondiffvacting Second Harmonic Beam
     非衍射的二次谐波
短句来源
     THE DIFFRACTION AND WALKOFF IN THE SECOND HARMONIC GENERATION
     二次谐波转换中的衍射和离散效应
短句来源
     Effect of focus on conversion efficiency of second harmonic
     聚焦对二次谐波转换效率的影响
短句来源
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  second harmonic conversion
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.
      
Neglecting pump depletion, it is found that for samples of well-defined symmetry, the second harmonic conversion efficiency scales with film thickness, with no observed enhancement owing to coherence length effects.
      
It is shown that, in such crystals, the maximal efficiency of fundamental-to-second harmonic conversion is low, and the dependence of the average intensity of the second harmonic on the fundamental intensity differs considerably from a square law.
      
Very low second harmonic conversion efficiency has been observed until now.
      
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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.

AgGaSe2 crystal of φ 20 × 60 mm has been grown by the method of oven temperature drop. The frequency-doubled (5. 3 μm) output and the power conversion efficiency of 1. 12% have been obtained for second harmonic generation of TEA CO2 laser (10. 6 μm). The pumped and the damaged threshold are about 3 MW/cm2 and 11 MW/cm2, respectively. We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.

用炉温下降法生长出尺寸为φ20×60mm的AgGaSe2单晶体。在12mm长,切角为55°的AgGaSe2中,获得了TEACO2激光的倍频输出,其功率转换效率为1.12%。泵浦阈值和破坏阈值分别为3MW/cm2和11MW/cm2。还讨论了泵浦束的发散角对二次谐波转换效率的影响。

Second harmonic conversion efficiency of nearly 30% in typeⅠphase matching BBO Crystal has been demonstrated with Ti:sapphire femtosecond laser pulses. Analysis on frequent doubling is presented here in particular with femtosecond laser pulses.

用互类匹配BBO晶体对近红外波段钛宝石飞秒脉冲激光做倍频实验,取得近30%的转换效率,对飞秒脉冲激光倍频的有关问题进行了分析讨论.

 
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