Exhibition of circular Bragg phenomenon by hyperbolic, dielectric, structurally chiral materials
Optics
2014-03-03 v1
Abstract
The relative permittivity dyadic of a dielectric structurally chiral material (SCM) varies helicoidally along a fixed direction; in consequence, the SCM exhibits the circular Bragg phenomenon, which is the circular-polarization-selective reflection of light. The introduction of hyperbolicity in an SCM---by making either one or two but not all three eigenvalues of the relative permittivity dyadic acquire negative real parts---does not eliminate the circular Bragg phenomenon, but significantly alters the regime for its exhibition. Physical vapor deposition techniques appear to be suitable to fabricate hyperbolic SCMs.
Keywords
Cite
@article{arxiv.1312.2157,
title = {Exhibition of circular Bragg phenomenon by hyperbolic, dielectric, structurally chiral materials},
author = {Akhlesh Lakhtakia},
journal= {arXiv preprint arXiv:1312.2157},
year = {2014}
}