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- The group velocity matching and group velocity dispersion have been investigated for noncollinear optical parametric amplification with periodically poled KTiOPO4 (KTP). 研究了周期性极化晶体非共线参量放大的群速匹配和群速色散。
- The dependences of gain bandwidth on crystal length and pump intensity are also studied.Selecting appropriate grating period, wider tunable range can be obtained with group velocity matching. 选择合适的光栅周期，能获得调谐范围较宽的群速匹配脉冲参量放大，参量带宽与晶体长度、非共线角及群速色散有关。
- group velocity matching 群速匹配
- A simple analysis is made of the superluminal group velocity. 分析了电磁波传播时的超光速群速。
- Superluminal Group Velocity and Effective Velocity of Information Transfer[J]. 引用该论文 郭奇志;谭维翰.
- The group velocity is estimated as 1/35 of the light speed in vacuum. 群速度估计为真空光速的1/35。
- Experiment on the characteristics of superluminal group velocity[J]. 引用该论文 滕李虎;周渭;冯宝英;偶晓娟;邹魏华.
- Quasi Velocity Matched Electrooptic Phase Modulator[J]. 引用该论文 郭凤珍;于长泰;小林哲郎.
- The group velocity is the speed at which modulated signals would be transmitted. 群速度就是将调制信号发送出去的速度。
- Group Velocity (Simulation output image created using MATLAB? Software.) (Provided by Prof. Chiang C. Mei. 波群速度（使用MATLAB?软体产生的模拟输出影像）。
- Some "fishhook" curves are also given which appear from the third group velocity curve. 并给出了从第三支群速度曲线开始出现的若干条鱼钩状曲线。
- The reflection spectrum, time delay, and group velocity dispersion (GVD) of the gratings are analyzed. 并对此种光栅的反射谱，时延及群速度色散进行了理论分析；
- By establishing the system model of moving-base alignment velocity match, the factors that influenced the transfer alignment were analyzed, such as lever arm effect, flexible vibrations, etc. 通过建立动基座对准速度匹配的系统模型,对影响传递对准的一些重要因素如杆臂效应、挠曲振动等进行了分析,按照既定的载机机动方案采集飞行数据进行离线仿真。
- Then it discusses its three prominent merits: the property of single mode,high nonlinearity and controllable group velocity dispersion. 然后讨论了其三个突出的优点:单模传输特性、高非线性效应和可控群速度色散特性。
- For capturing the unsteady shocklets are developed upwind compact scheme with group velocity control(GVC) and eighth order accurate GVC8 scheme. 构造了湍流直接数值模拟的高精度高分辨率计算方法。
- Moreover, the influence of the group velocity mismatch (GVM) and group velocity dispersion (GVD) on the filter for broad-bandwidth femtosecond pulse is analyzed. 同时还分析了群速失配以及色散对宽带飞秒脉冲双折射干涉滤波的影响。
- It is found that the on-axis spectrum blueshift of ultrashort pulsed Hermite-Gaussian beams is relative to group velocity and pulse duration, but not to group velocity dispersion. 结果表明,超短脉冲厄米-高斯光束的轴上光谱蓝移,蓝移大小与群速度及脉冲宽度有关,而与群速度色散无关。
- The paper studies the concepts of phase velocity and group velocity on electromagnetic wave propagation and discusses the relation between signal conveyance and energy conveyance. 摘要文章研究了电磁波传播的群速与相速概念，论证了信号传送与能量传递的必然联系。
- Moreover the unusual combination of strong birefringence with zero group velocity walkoff can be obtained, which may allow the novel nonlinear applications. 另外椭圆孔光子晶体光纤还可实现在单模区同时保持高双折射和零群速度走离,可用于研究光纤的非线性。
- Numerical investigation of IGVC(Improved Group Velocity Control) scheme for the hyperbolic conservation laws including source terms is discussed in this paper. 研究带源项双曲守恒律方程的IGVC(改进的群速度控制)格式。
