Issue 4 (2016)

Dispersion properties of Kolakoski-cladding hollow-core nanophotonic Bragg waveguide

Dispersion properties of Kolakoski-cladding hollow-core nanophotonic Bragg waveguide

A comprehensive analysis of guided modes of a novel type of a planar Bragg reflection waveguide that consists of a low refractive index guiding layer sandwiched between two finite aperiodic mirrors is presented. The layers in the mirrors are …

High-efficiency refractive index sensor based on the metallic nanoslit arrays with gain-assisted materials

High-efficiency refractive index sensor based on the metallic nanoslit arrays with gain-assisted materials

We have designed and investigated a three-band refractive index (RI) sensor in the range of 550–900 nm based on the metal nanoslit array with gain-assisted materials. The underlying mechanism of the three-band and enhanced characteristics of the …

Engineering Optical Activity of Semiconductor Nanocrystals via Ion Doping

Engineering Optical Activity of Semiconductor Nanocrystals via Ion Doping

Controlling the strength of enantioselective interaction of chiral inorganic nanoparticles with circularly polarized light is an intrinsically interesting subject of contemporary nanophotonics. This interaction is relatively weak, because the …

High Efficiency and Color Rendering Quantum Dots White Light Emitting Diodes Optimized by Luminescent Microspheres Incorporating

High Efficiency and Color Rendering Quantum Dots White Light Emitting Diodes Optimized by Luminescent Microspheres Incorporating

In this research, we have developed an approach by incorporating quantum dots (QDs) with red emission into mesoporous silica microspheres through a non-chemical process and obtained luminescent microspheres (LMS). Owing to the lattice structure of …

Ultrafast optical imaging technology: principles and applications of emerging methods

Ultrafast optical imaging technology: principles and applications of emerging methods

High-speed optical imaging is an indispensable technology for blur-free observation of fast transient dynamics in virtually all areas including science, industry, defense, energy, and medicine. High temporal resolution is particularly important for …

Towards efficient solar-to-hydrogen conversion: Fundamentals and recent progress in copper-based chalcogenide photocathodes

Towards efficient solar-to-hydrogen conversion: Fundamentals and recent progress in copper-based chalcogenide photocathodes

Photoelectrochemical (PEC) water splitting for hydrogen generation has been considered as a promising route to convert and store solar energy into chemical fuels. In terms of its large-scale application, seeking semiconductor photoelectrodes with …

Optical and Infrared Helical Metamaterials

Optical and Infrared Helical Metamaterials

By tailoring metamaterials with chiral unit cells, giant optical activity and strong circular dichroism have been achieved successfully over the past decade. Metamaterials based on arrays of metal helices have revolutionized the field of chiral …