6 research outputs found
All-angle left-handed negative refraction in Kagome and honeycomb lattice photonic crystals
Possibilities of all-angle left-handed negative refraction in 2D honeycomb
and Kagome lattices made of dielectric rods in air are discussed for the
refractive indices 3.1 and 3.6. In contrast to triangular lattice photonic
crystals made of rods in air, both the honeycomb and Kagome lattices show
all-angle left-handed negative refraction in the case of the TM2 band for low
normalized frequencies. Certain advantages of the honeycomb and Kagome
structures over the triangular lattice are emphasized. This specially concerns
the honeycomb lattice with its circle-like equifrequency contours where the
effective indices are close to -1 for a wide range of incident angles and
frequencies.Comment: 7 pages, 8 figures, pd
International Winter School on Two-Dimensional Systems, Heterostructures, and Superlattices
5th International Winter School on the Physics and Technology of Submicron Structures
This volume presents a discussion of the latest results in the physics of low-dimensional structures. At the winter school major breakthroughs were reported, and some of the excitement of the participants is reflected in the contributions. The topics treated range from the fabrication of microstructures and the physical background of future semiconductor devices to vertical transport in nanostructures, universal conductance fluctuations, and the transition from two-dimensional to one-dimensional conduction in semiconductor structures