The effect of media parameters on wave propagation in a chiral metamaterials slab using FDTD. (9th May 2013)

• Record Type: Journal Article
• Authors: Wang, M. Y.; Li, G. P.; Zhou, M.; Wang, R.; Zhong, C. L.; Xu, J.; Zheng, H.
• Is Part Of: International journal of numerical modelling. Volume 27:Number 1(2014:Jan./Feb.)
• Page Start: 109
• Page End: 121
• Publication Date: 2013-05-09
• Subjects: Electric networks -- Mathematical models -- Periodicals; Electronics -- Mathematical models -- Periodicals; 621.3011
• DOI: 10.1002/jnm.1902
• Languages: English
• ISSNs: 0894-3370

Abstract

<abstract abstract-type="main"> <title>SUMMARY</title> <p>Because the permittivity, permeability, and chirality parameters of chiral metamaterials (CMMs) are frequency dependent, the wave equations that describe the characters of electromagnetic wave propagation in CMMs are presented and discretized on the basis of auxiliary differential equation technique in finite‐difference time‐domain method. The total‐field/scattered‐field, Mur's first‐order absorbing and dielectric boundary conditions for CMMs slab are discussed in the paper. Numerical results show that the cross‐polarized reflected coefficient of the CMMs slab is zero. Negative index of refraction phenomenon and optical property of giant optical activity in CMMs slabs are illustrated with 1D auxiliary differential equation–finite‐difference time‐domain method. The effects to positive or negative phase velocity caused by media parameters of CMMs are studied. Copyright © 2013 John Wiley &amp; Sons, Ltd.</p> </abstract>