Asymmetric light reflectance associated with localized surface plasmons excited in metal nanoparticles on a quartz substrate is observed and analyzed. This phenomenon is explained by the superposition of two waves, the wave reflected by the air/quartz interface and that reflected by the metal nanoparticles, and the resulting interference effects. Far field behavior investigation suggests that z...

Metallic woodpile photonic crystals and metamaterials operating across the visible spectrum are extremely difficult to construct over large areas, because of the intricate three-dimensional nanostructures and sub-50 nm features demanded. Previous routes use electron-beam lithography or direct laser writing but widespread application is restricted by their expense and low throughput. Scalable ap...

Natural photosynthetic photonic nanostructures can show sophisticated light–matter interactions including enhanced light absorption by slow even for highly pigmented systems. Beyond fundamental biology aspects, these natural are very attractive as blueprints advanced devices. But the soft-matter biomimetic implementations of such is challenging due to low refractive index contrast most organic ...

We report a theoretical analysis of total absorption conditions in structure consisting lossy coating layer on top metal substrate, which is known as Dallenbach absorber. All possible combinations complex refractive indices the material and thicknesses providing complete are described for case normal incidence plane wave. The resulting solution space allows absorbers to be designed both with us...

Ferrite metamaterials based on the negative permeability of ferromagnetic resonance in ferrites are of great interest. However, such metamaterials face a limitation that the ferromagnetic resonance can only take place while an external magnetic field applied. Here, we demonstrate a metamaterial based on permanent magnetic ferrite which exhibits not only negative refraction but also near zero re...

Quantum optical techniques may yield immersion fluids with high indices of refraction without absorption. We describe one such technique in which a probe field experiences a large index of refraction with amplification rather than absorption, and examine its practicality for an immersion lithography application. Enhanced index can be observed in a three-level system with a tunable, near-resonan...