Please use this identifier to cite or link to this item:
|Title:||Backward waves in magnetoelectrically chiral media: Propagation, impedance, and negative refraction|
|Authors:||Qiu, C.-W. |
|Source:||Qiu, C.-W., Yao, H.-Y., Li, L.-W., Zouhdi, S., Yeo, T.-S. (2007-04-30). Backward waves in magnetoelectrically chiral media: Propagation, impedance, and negative refraction. Physical Review B - Condensed Matter and Materials Physics 75 (15) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.75.155120|
|Abstract:||Magnetoelectrically chiral media are studied in this paper as potential materials to realize double negative materials and negative refractive characteristics. The behaviors of the negative refractive index, the backward eigenwaves, and the impedance of these eigenmodes of this particular type of chiral media are examined in detail. We consider longitudinal and transverse propagation separately. Among the wave numbers obtained, we find that two of them are backward propagating waves in certain frequency bands. The helicity and polarization states are shown. We further study the impedance of these backward eigenmodes, which have potential applications in impedance matching, subwavelength resonator cavities and high-directivity antennas. Due to the off-diagonal gyrotropic parameters, a negative refractive index can be achieved when the material parameters and frequency are properly chosen. A study of the zero index of refraction for magnetoelectrically chiral media is carried out, and potential applications are proposed. © 2007 The American Physical Society.|
|Source Title:||Physical Review B - Condensed Matter and Materials Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 6, 2017
WEB OF SCIENCETM
checked on Nov 22, 2017
checked on Dec 10, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.