We demonstrate a four-channel de-multiplexer based on third-order cascaded elliptical
micro-rings on silicon-on-insulator. By applying cascaded elliptical micro-rings structure, the …

A photonic crystal Mach–Zehnder demultiplexer (PC-MZDmux) with four output ports based
on the self-collimation phenomenon in a two-dimensional (2D) PC is proposed and …

Abstract Photonic crystal Mach–Zehnder add-drop filters (PC-MZADFs) based on the self-
collimation phenomenon in a two-dimensional (2D) PC are proposed and numerically …

This work presents salient features of a new photonic crystal fiber composed of silica in
background and coating of gold in holes. This has been done by computing the effective …

We introduce a design concept of an optical notch filter (NF) utilizing two perfectly reflecting
mirrors and a beam splitter. Based on the new design concept, a photonic crystal (PC)-NF …

We report that the Fano resonance of self-collimated beams can be achieved in a two-
dimensional photonic crystal by introducing a Fano resonator that is composed of zigzag …

We report on the experimental realization of slow self-collimated beams by using a 10-
coupled zigzag-box resonator in a two-dimensional photonic crystal. The speeds of the …

We report that self-collimated beams from a photonic crystal can be refracted to any direction
in air by introducing an additional layer composed of dielectric rods at a photonic crystal …

We present numerical and experimental demonstration of slowing down the speed of
terahertz guiding modes of a metal air-gap waveguide by using a one-dimensional coupled …

We show that reflections at the boundaries of a finite-size coupled terahertz cavity in a metal
air-gap waveguide can be minimized by introducing antireflection slits. The optimal values of …