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arXiv physics/0606158physics.optics
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匀速运动各向同性手征媒质的电磁场

On electromagnetics of an isotropic chiral medium moving at constant velocity

Tom G. Mackay, Akhlesh Lakhtakia

摘要:

从同向运动观察者的角度来看是各向同性手征介质的介质从非同向运动观察者的角度来看是法拉第手征介质(FCM)。建立了该FCM的Tellegen本构关系。通过扩展Beltrami场的概念,利用这些本构关系表明,平面波传播的特点是由四个一般独立的波数。该FCM可以支持负相速度在某些平移速度和某些波矢,即使相应的各向同性手征介质不。本构关系和Beltrami-样字段也被用来开发一个方便的频谱表示的并矢格林函数的FCM。

英文摘要:

A medium which is an isotropic chiral medium from the perspective of a co-moving observer is a Faraday chiral medium (FCM) from the perspective of a non-co-moving observer. The Tellegen constitutive relations for this FCM are established. By an extension of the Beltrami field concept, these constitutive relations are exploited to show that planewave propagation is characterized by four generally independent wavenumbers. This FCM can support negative phase velocity at certain translational velocities and with certain wavevectors, even though the corresponding isotropic chiral medium does not. The constitutive relations and Beltrami--like fields are also used to develop a convenient spectral representation of the dyadic Green functions for the FCM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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