arXiv subjects

P. L. Mladyonov

Publications and source records attributed to P. L. Mladyonov.

2 recordsLinked to original sources

arXiv2006

Circular conversion dichroism in planar chiral metamaterials

We report the first experiential observation and theoretical analysis of the new phenomenon of planar chiral circular conversion dichroism, which in some aspects resembles the Faraday effect in magnetized media, but does not require the presence of a magnetic field for its observation. It results from the interaction of an electromagnetic wave with a planar chiral structure patterned on the sub-wavelength scale, and manifests itself in asymmetric transmission of circularly polarized waves in the opposite directions through the structure and elliptically polarized eigenstates. The new effect is radically different from conventional gyrotropy of three-dimensional chiral media.

physics.optics↗

arXiv2005

Continuous `fish scale' planar electromagnetic meta-material

We report on a new type of continuous electromagnetic metal planar meta-material, which resembles a `fish scale' structure. It is highly transparent to electromagnetic radiation throughout a broad spectral range apart from at one isolated wavelength. When the structure is superimposed on a metallic mirror it becomes a good broadband reflector everywhere apart from one wavelength where the reflectivity is small. At this wavelength the reflected wave shows no phase change with respect to the incident wave, thus resembling a reflection from a hypothetical zero refractive index material, or `magnetic wall'. We also discovered that the structure acts as a local field concentrator and a resonant `amplifier' of losses in the underlying dielectric.

cond-mat.mtrl-sci↗