1) negative group velocity
负群速度
1.
Left-handed materials have many strange properties,such as negative refractive index,negative group velocity,perfect imaging,inverse Doppler effect and abnormal Cerenkov radiation.
本文介绍了左手材料的概念、原理和它具有的负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质。
2.
They have many strange properties such as negative group velocity, negative refractive index, perfect imaging, inverse Doppler effect and abnormal Cerenkov radiation.
它具有诸如负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质 。
3.
The paper introducs the history and research of negative refractive materials and simply analysis of negative index of refraction gives rise to the strange properties such as negative group velocity,negative refraction,perfect lens,inverse doppler effect and abnormal Cerenkov radiation.
介绍了负折射率材料的发现及研究历史,简单分析由负折射产生的负群速度、逆多普勒频移、反常切伦柯夫辐射、完美透镜等各种效应,进一步讨论负折射材料的应用展望。
2) negative GVD
负群速度色散
1.
We use Gires Tournois interferometer as a means of providing negative GVD to compensate positive GVD of Ti:sapphire rod.
利用Ｇｉｒｅｓ－Ｔｏｕｒｎｏｉｓ干涉仪提供负群速度色散补偿钛宝石棒产生的正色散，以获得稳定的ｐｓ自锁模脉冲。
3) negative group velocity
负群速
1.
In this paper we report that we observed slow light of the optical pulse in the EIT medium and superluminal phenomena or negative group velocity of the pulse in the EIA medium, the speed of light in EIT medium was c/30000 and the speed of light in EIA was - c/3000.
报道我们通过实验观察到了光脉冲在铯原子气体电磁感应透明(EIT)介质中减慢(减到了c/30000)和在电磁感应吸收(EIA)介质中的负群速传播(-c/3000)现象。
4) negative phase velocity
负相速度
1.
The negative phase velocity in the stable state is caused by the "frequency change" in the temporary process.
对传输线结构的一维Metamaterials进行了电路仿真,仿真结果表明,Metamaterials中的电磁波遵守因果关系律,稳态下的负相速度是暂态过程中的“频率变化”的结果。
6) Negative apparent velocity
负视速度
补充资料：群速度
见波。
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