Conventional three-dimensionally (3D) chiral media can exhibit optical activity for transmitted waves, but optical activity for reflected waves is negligible. This work shows that mirror asymmetry of the experimental arrangement extrinsic 3D chirality leads to giant optical activity for reflected waves with fundamentally different characteristics. It is demonstrated experimentally that extrinsi...

A review is given of the optical properties of isotropic chiral media, based on the symmetrized constitutive relations of Condon. The review includes discussion of wave propagation in chiral media, and derivation of the reflection and transmission amplitudes of an isotropic optically active medium, and of a layer resting on a substrate. Boundary conditions and energy conservation relations are ...

Chiral media are characterized by the constitutive relations D = εE + iXicB and H = B/μ + iXicE where Xic is the chirality admittance introduced to take into account macroscopic handedness or optical activity inherent in the media. In addition we define a chirality impedance and a dimensionless chirality factor to describe the wave properties of this medium. As known for some time, this medium ...

A hexafullereno-diporphyrinoid was obtained in a sequence of cycloaddition steps using porphyrins programmed for [4+2]-cycloaddition reactions and C(60)-fullerene.

In this paper, an idea for a new class of complex media that we name feedforward–feedbackward (FFFB) media is presented and some of the results of our theoretical work in analyzing plane wave propagation in the axial direction through these media are described. The concept of FFFB media, as introduced here, was inspired by the theoretical research of Saadoun and Engheta on a variation of artifi...

carbon nanotubes (cnts) are specific structures with valuable characteristics. in general, the structure of each nanotube is defined by a unique chiral vector. in this paper, different structures of short single-walled cnts are simulated and their mechanical properties are determined using finite element method. for this aim, a simple algorithm is presented which is able to model the geometry o...