DocumentCode
962816
Title
Group velocity in space-time periodic media
Author
Chu, R.S. ; Tamir, Theodor
Author_Institution
Polytechnic Institute of Brooklyn, Department of Electrophysics, Brooklyn, USA
Volume
7
Issue
14
fYear
1971
Firstpage
410
Lastpage
412
Abstract
The concept of the group velocity of electromagnetic fields is examined for waves that propagate through an isotropic lossless dielectric medium whose permittivity is varying periodically with respect to both space and time. It is found that the group velocity represents the velocity of energy transport averaged over the length of a periodicity cell.
Keywords
electromagnetic fields; electromagnetic waves; elasto optic interactions; electromagnetic fields; group velocity; permittivity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19710278
Filename
4244881
Link To Document