Contact lenses are emerging as a promising platform for non-invasive biosensing of various
biomarkers in tear fluid. This review covers recent advances in develo** contact lens …

Colloid chemical methods for the preparation of nanoparticles and their self-assembly and
organization into 2-dimensional arrays and three dimensional networks are surveyed …

We show that a sonic crystal made of periodic distributions of rigid cylinders in air acts as a
new material which allows the construction of refractive acoustic devices for airborne sound …

Engineering of a refractive index profile is a powerful method for controlling electromagnetic
fields. In this paper, we investigate possible realization of isotropic gradient refractive index …

Photonic balls have been fabricated (see Figure) by field‐enhanced electrospray of an
aqueous colloidal suspension. The polystyrene (PS) beads inside the suspension droplets …

We explore two-dimensional triangular lattice photonic crystals composed of air holes in a
dielectric background which are subject to a graded-index distribution along the direction …

Germanium inverse opals with a full photonic bandgap in the NIR region are accessible by
CVD. Deposition of digermane on sintered opals made of silica microspheres, followed by …

Motivated by a recent experiment on acoustic lenses, we perform numerical calculations
based on a multiple scattering technique to investigate the focusing of acoustic waves with …

In this paper, a method of rotating scatterers was used to design a graded negative
refraction index phononic crystal (GNRI PC) plate lens. The present plate lens contains the …

Using the Fourier expansion method in the low-frequency limit we develop an effective-
medium theory for two-dimensional (2D) periodic composites. We give a rigorous proof that …