Surface Wave Modes in Chiral Negative Refraction Grounded Slab Waveguides

Abstract

Abstract-The surface wave modes in the chiral negative refraction grounded slab waveguides in which the slab or cladding consists of chiral negative refraction metamaterial are investigated. The dispersion relations, electromagnetic fields, energy flow distribution and the total power of surface wave modes are presented. Some novel features have been found. The energy flow of surface wave mode is in opposite directions in the core and cladding. The total power is negative (corresponds to backward wave) in the grounded chiral negative refraction metamaterial slab waveguides.

Giant Circular Dichroism and Negative Refractive Index of Chiral Metamaterial Based on Split-Ring Resonators

“…MMs have become an excellent platform for some unique applications, such as superlens, cloaking, electric devices, and so on [2][3][4][5]. Recently, more and more interest has been focused on the chiral metamaterial (CMM) structures due to their attractive EM (optical) properties such as strong optical activity, circular dichroism (CD) and negative refractive index (NRI) from microwave to optical range [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Intuitively, CMMs cannot be brought into congruence with their mirror images (the socalled enantiomer), which neither violates reciprocity nor time-reversal symmetry.…”

Application of Chiral Layers and Metamaterials for the Reduction of Radar Cross Section

“…During the past several years, chiral metamaterials as a kind of artificial materials has attracted an enormous amount of interest that could be used to achieve many customized functionalities, such as the negative refraction and giant optical activity [10][11][12][13][14][15][16][17][18][19][20], and many other applications [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. The constitutive equations for chiral media assuming a time harmonic dependence e jωt are [1]:…”

Exotic Characteristics of Power Propagation in the Chiral Nihility Fiber

“…NRI chiral metamaterials can also be used as a "perfect lens", but for circularly polarized waves [29,30]. The unusual characteristics of guided and surface modes in chiral negative refraction slab [37,38], grounded slab [39] and parallelplate waveguides [40] have been investigated theoretically. Chiral nihility metamaterial is a special case of chiral negative refraction medium, in which the permittivity and permeability are simultaneously zero [25,41].…”