DocumentCode
2130206
Title
Electromagnetic energy in negative index materials
Author
Shivanand ; Webb, Kevin J.
Author_Institution
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
fYear
2012
fDate
8-14 July 2012
Firstpage
1
Lastpage
2
Abstract
An exact separation of both electric and magnetic energies into stored and lost energies is shown to be possible in the special case when the wave impedance is independent of frequency. Using an example metamaterial response that provides a negative refractive index, it is shown that negative time-averaged stored energy can occur, with total energy that remains positive.
Keywords
electromagnetic wave propagation; metamaterials; refractive index; electric energy; electromagnetic energy; metamaterial response; negative index material; negative time-averaged stored energy; refractive index; wave impedance; Dispersion; Magnetic domains; Magnetic resonance; Magnetic separation; Materials;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location
Chicago, IL
ISSN
1522-3965
Print_ISBN
978-1-4673-0461-0
Type
conf
DOI
10.1109/APS.2012.6348090
Filename
6348090
Link To Document