期刊
JOURNAL OF OPTICS
卷 16, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/16/10/105705
关键词
polarization; Hertz potentials; electromagnetic field
类别
The polarization potentials, also known as Hertz vectors, are useful auxiliary fields that permit the calculation of the fundamental electromagnetic fields in many cases of practical importance. In this article we show that in a vacuum a single Hertz vector written as the product of a scalar potential and a constant vector, naturally arises as consequence of the transversality of the electromagnetic fields. Thus, our treatment shines a new light on the physical meaning of a Hertz potential.
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