1) group delay
群延迟
1.
Realization of multichannel group delay based on thickness-tapered photonic crystals;
厚度递减的光子晶体多通道群延迟的实现
2.
Study on signal group delay estimating methods
信号群延迟估计方法研究
3.
Photonic crystal superprism is the key device for the light deflection,filtering and so on,and the group delay is one of the most important parameters to judge light deflection and filtering performances.
光子晶体超棱镜是实现分色、滤波等功能的关键器件,而群延迟是衡量分波滤波效果的重要参量。
2) group velocity delay
群速延迟
1.
The theoretical model of type-Ⅰ and type-Ⅱ phase matching conditions for second harmonic generation,group velocity delay of fundamental and second harmonic,and limitation of nonlinear crystal matching length by group velocity mismatch,was obtained by using energy conservation and three-wave coupled equations in optical parametric process of ultra-short pulses.
基于能量守恒和三波耦合波方程,建立了超短脉冲在参变过程中二次谐波产生时的I类和II类相位匹配条件、基波与谐波之间的群速延迟时间、以及群速失配对晶体长度限制的理论基础。
3) group delay simulation
群延迟仿真
4) differential group delay
差分群延迟
1.
The difficulty of solving PMD lies in its randomness of differential group delay (DGD) between the principal states of polarization (PSP) and the change.
PMD问题的最大困难在于差分群延迟（DGD）和偏振主态（PSP）变化的随机性。
5) group velocity delay (GVD)
群速度延迟
1.
Based on the fact that dielectric film filter is minimum phase filter, this paper provided a method to reconstruct phase response from its amplitude response and then for the group velocity delay (GVD) and the chromatic dispersion.
文章根据介质膜滤波器为最小相位滤波器的特点,提出了一种从介质膜滤波器的幅度响应重构出相位响应,然后求出它的群速度延迟以及色散的数值方法。
6) group delay dispersion
群延迟色散
1.
Negative- dispersion mirrors are designed and prepared, which are analyzed from the main factors such as material refractive index, thickness, the sensitive layers and interface roughness considering the electric field distribution and the measurement result of group delay dispersion (GDD) and the scanning electron microscope.
实验设计并镀制了Gires-Tournois(G-T)镜,结合电场强度分布及薄膜的群延迟色散(GDD)、扫描电镜的测量结果,从材料折射率、膜层厚度、敏感膜层的变化及界面粗糙度等主要因素对Gires-Tournois镜群延迟色散性能的影响进行了分析。
补充资料：陪群公登箕山赋得群字
【诗文】：
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条