群速的英文

• grouvelocity

• "群"英文翻译    crowd; group
• "速"英文翻译    fast; rapid; quick; speedy
• "群速度" 英文翻译 :    envelope velocity; group velocity; groupvelocity; groupverocity; grouverocity
• "波群速度" 英文翻译 :    group celerity; velocity of wave group; wave group velocity
• "基群速率" 英文翻译 :    basic rate access
• "群速度色散" 英文翻译 :    gvd
• "群速率接口" 英文翻译 :    interface primary rate; interface, primary rate (pri); pri
• "群速偏移" 英文翻译 :    gvd grou velocity dispersion
• "群速色散" 英文翻译 :    gvd grouvelocity dispersion
• "相速和群速" 英文翻译 :    phase velocity and group velocity
• "一次群速率" 英文翻译 :    primary rate
• "异常群速度" 英文翻译 :    anomalous group velocity
• "【物理学】波群速度。" 英文翻译 :    group velocity
• "基群速率接口" 英文翻译 :    pri primary rate interface; pri:primany rate interface; priamary rate interface
• "基群速率接入" 英文翻译 :    primary rate access pra
• "基群速率适配" 英文翻译 :    primary rate adaptation
• "瑞利波群速度" 英文翻译 :    rayleigh group velocity
• "磁流体力学群速度" 英文翻译 :    grouvelocity mhd
• "频率相关群速度" 英文翻译 :    frequency-dependent grouvelocity
• "一次群速率接口" 英文翻译 :    pri primary rate interface
• "一次群速率接入" 英文翻译 :    isdn-pra isdn primary rate access isdn; pra primary rate access
• "基群速率接口, 主速率接口" 英文翻译 :    primary rate interface pri
• "全球平均瑞利波群速" 英文翻译 :    gagb; global average group velocity
• "群松驰" 英文翻译 :    group relaxation
• "群松弛" 英文翻译 :    group relaxation
• "群松" 英文翻译 :    gunmatsu

• 2 . we measure the down - conversion ring with ccd and analysis the thickness of the down - conversion ring . 3
  分析了抽运光的走离效应和群速失配对下转换过程的影响。
• Water waves . derivation of the equations and linearization . notions of dispersion and group speed . weak nonlinearity and solitary waves . perturbation expansions
  水波。方程的导出及其线性化。离差和群速的概念。弱非线性和孤波。摄动扩展。
• ( b ) when the depth of the groove is relatively shallow , the helical triangle - shaped helical groove has the widest bandwidth , the least dispersion , and the fastest phase velocity
  ( 2 )当槽的深度较浅时,三角形螺旋槽的通频范围最大,且色散最弱,其中波的相速和群速最大。
• The effect of pump beam ' s walk - off and the group - velocity - mismatch in bbo crystal is discussed , the group - velocity - mismatch can be compensated by non - collinear phase - match when the angle between signal and idler beams equals to 14 . 4
  当下转换光与抽运光夹角达到13 . 4度时，非共线相位匹配基本可以消除晶体中群速失配对下转换过程的影响。
• The phase matching and group velocity matching conditions of type - i and type - ii second harmonic generation ( shg ) are obtained according to the momentum and energy conservation laws . the group velocity delay of ultrashort pulse shg on clbo and the crystal length decided by the group velocity delay are analyzed and compared with bbo ' s
  从动量守恒、能量守恒出发推导得出了超短脉冲倍频的类、类相位匹配和群速匹配条件，对clbo晶体用于超短脉冲倍频时的群速延迟以及由群速延迟决定的晶体长度进行了分析和数值模拟，并与bbo晶体进行了比较。
• We have calculated and plotted the curves of the refractive index , group velocity index , lowest - order and second - order dispersion indexes as a function of wavelength . the lowest - order and higher - order dispersion - induced broadening and deforming of light pulses is analyzed for various pulse shapes , such as gaussian , super - gaussian and hyperbolic secant pulses
  给出了折射率、群速指数、低阶和二阶色散系数随波长变化的关系曲线，研究了高斯脉冲、超高斯脉冲和双曲正割脉冲等超短脉冲在clbo晶体中传播时，由于低阶色散和高阶色散引起的脉冲展宽和形变。
• In this paper , first , the study of the distribution of electromagnetic field , energy , power , reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied . then , the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field , energy , ponyting vector and their spectrums at different time and different position are obtained . and , the group velocity and energy velocity of wave packet through barrier are calculated
  从90年代开始， emig和martin 、 landauer等人研究了分段填充不同介质的波导中的电磁脉冲的传播。在本论文中，作者首先推导出分段填充不同介质的波导中的电磁场分布、能量、传输功率以及反射系数和传输系数的表达式,然后，采用magic程序模拟了这种波导结构中电磁波的传播情况，得到了在不同时刻和不同位置处的电磁场分布图、能量图、坡印廷矢量图以及它们的频谱图,并由模拟结果计算了波包穿越势垒的群速和能量速度。
• Based on these foundations , we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
  在此基础上，给出了一整套bbo - opo激光参数设计方案：计算了不同泵浦强度下的参量放大倍数；详细计算了在nd : yag调q激光器各次谐波泵浦条件下的共线类和类相位匹配的调谐曲线，以及非共线类相位匹配调谐曲线；分析了走离角对非线性系数和群速匹配的影响；计算了参量过程的允许角；计算了bbo - opo的理论阈值条件；分析了饱和与泵浦光束的消耗过程；给出了转换效率与超过泵浦阈值的倍数的关系；讨论了转换效率与输出镜反射率的关系；讨论了线宽控制的各种方法；研究了利用非稳腔改善光束质量的方法；考虑了bbo晶体的设计。
• In the picosecond and femtosecond time field , the durations of the pump and signal pulses are so short that special propagating characteristics of ultrashort pulse laser should be taken into account , especially the pulse broadening induced by the group velocity mismatch and the group velocity dispersion
  在皮秒和飞秒时域，由于泵浦光与产生的信号光的持续时间特别短，故在讨论超短脉冲与物质相互作用时必须计及超短脉冲在介质中传输的特殊性质，尤其是群速失配与群速色散引起的脉冲展宽。

• 群速的日语：ぐんそくど