ELECTROMAGNETIC PROPERTIES OF A CHIRAL-PLASMA MEDIUM

Citation
H. Torressilva et al., ELECTROMAGNETIC PROPERTIES OF A CHIRAL-PLASMA MEDIUM, Pramana, 49(4), 1997, pp. 431-442
Citations number
13
Categorie Soggetti
Physics
Journal title
ISSN journal
03044289
Volume
49
Issue
4
Year of publication
1997
Pages
431 - 442
Database
ISI
SICI code
0304-4289(1997)49:4<431:EPOACM>2.0.ZU;2-C
Abstract
The theoretical properties of a composite chiral-plasma medium are dev eloped. By using the reaction theorem for a magnetized chiroplasma, we obtain the proof of nonreciprocity based upon the constitutive relati onships between electromagnetic vectors-E, B, H, D. Using the Maxwell' s equations and the proposed constitutive relations for a chiral-plasm a medium, we derive the vectors E and H and from these equations, disp ersion relations and E-field polarizations are based. The obtained res ults for waves propagating parallel to the external magnetic field in a cold magnetized chiro-plasma are compared with typical results obtai ned for a cold plasma. For circulary polarized waves, a new mode conve rsion is founded with the chiral effect. The chiral rotation is obtain ed and compared with the Faraday rotation. For waves propagating acros s the magnetic held, we found a shift of the cut-offs of ordinary and extraordinary waves. On the lower branch of the extraordinary wave mod e there is no bands of forbidden frequencies and the reflection point vanishes when the chiral parameter increases.