gvm

The theory and the experiment provide an ideal geometrical model for reducing the GVM between three waves, and provide a theoretical guidance and experimental verification for obtaining parametric pulses with higher gain and shorter duration in femtosecond optical parametric amplification.

该理论和实验研究为减小飞秒光参量放大中三波的群速失配提供了一个理想的几何模型，为获得高增益、窄脉冲宽度的参量光输出提供了理论依据和实验验证。

Study on factors of unstable analytical results for gvm 1014 type vacuum direct reading spectrometer

真空直读光谱仪分析结果不稳定的因素分析及解决办法

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。

Since the zero GVM in type-I QPM, we observe cascaded wavelength conversion of ultra-short pulses in frequency domain.

接着，基于I型准位相匹配具有群速度匹配波长的特性，本论文进行了超短脉冲的级联实验，在频域中观察到了转换结果。

A terminal voltage control generating voltmeter ( GVM ) for the single ion accelerator was designed.

设计采用旋转伏特计 ( GVM ) 控制方式稳定单离子束加速器终端电压.

The effects of SPM, XPM and GVM on the pulse shape and conversion efficiency have been analyzed.

分析了自相位调制，交叉相位调制和群速度失配对三倍频光脉冲形状以及转换效率的影响。

The principle of the generalized vector method ( GVM) has been extended to the hexagonal crystal system material under the conditions of variable axial ratio and the mathematical model on it accordingly established.

将广义矢量法原理拓展到变轴比条件下的六方晶系材料，并建立了相应的数学模型。

A terminal voltage control system with a generating voltmeter ( GVM) for the single ion accelerator was designed.

设计采用旋转伏特计（GVM）控制方式稳定单离子束加速器终端电压。