Isotropic Chiral Objects With Zero Backscattering
نویسندگان
چکیده
منابع مشابه
Chiral three-dimensional isotropic lattices with negative Poisson’s ratio
Chiral three-dimensional isotropic cubic lattices with rigid cubical nodules and multiple deformable ribs are developed and analyzed via finite element analysis. The lattices exhibit geometry dependent Poisson’s ratio that can be tuned to negative values. Poisson’s ratio decreases from positive to negative values as the number of cells increases. Isotropy is obtained by adjustment of aspect rat...
متن کاملChiral isotropic liquids from achiral molecules.
A variety of simple bent-core molecules exhibit smectic liquid crystal phases of planar fluid layers that are spontaneously both polar and chiral in the absence of crystalline order. We found that because of intralayer structural mismatch, such layers are also only marginally stable against spontaneous saddle splay deformation, which is incompatible with long-range order. This results in macros...
متن کاملThird-rank piezoelectricity in isotropic chiral solids
The highest symmetry in which piezoelectricity was thought to occur is cubic. Here it is shown that third rank piezoelectricity can occur in isotropic chiral solids. Polarization is coupled via an isotropic third rank tensor to the antisymmetric part of the stress. Asymmetric stress can occur if balanced by moments distributed over area or volume. Such moments occur in heterogeneous solids in w...
متن کاملOptical properties of isotropic chiral media
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 ...
متن کاملPlane Waves with Negative Phase Velocity in Isotropic Chiral Mediums
The propagation of plane waves in an isotropic chiral medium (ICM) is investigated. Simple conditions are derived — in terms of the constitutive parameters of the ICM— for the phase velocity to be directed opposite to the direction of power flow. It is demonstrated that phase velocity and power flow may be oppositely directed provided that the magnetoelectric coupling is sufficiently strong.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Antennas and Propagation
سال: 2012
ISSN: 0018-926X,1558-2221
DOI: 10.1109/tap.2012.2207069