Since the advent of quantum mechanics and the clear demonstration of the existence
of'matter waves', physicists have never failed to take advantage of concepts and theoretical …

Our aim was to develop a rapid non-targeted approach to authenticate commercial honey
combining Raman spectroscopy and pattern recognition analysis. Honey samples (n= 97) …

The efficient delivery of photons from light sources to photonic circuits is central to any fibre-
optic or integrated optical system. Coupling light emitters to optical fibres or waveguides …

Reduction of surface reflection loss is crucial for high efficiency next generation Si solar
cells. Surface texturing provides a viable method to reduce loss over the full solar …

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 …

Conventionally a line defect in the photonic crystal (PhC) is used to create a waveguide for
light propagation through the PhC. A PhC based filter is designed by introducing micro …

We propose a temperature sensor design based on the two-dimensional (2-D) photonic
crystals (PhCs) microcavity coupled to two waveguides. We consider a Si 2-D PhC, and the …

Tapered silicon photonic crystals (PhCs) with smooth sidewalls are realized using a novel
single-step deep reactive ion etching. The PhCs can significantly reduce the surface …

Photonic crystal microring resonators are suitable devices for all-optical integrated circuits.
Small size of the structure without radiation loss and topology of structure make these …

A Si-based cantilever sensor with photonic crystal (PC) resonator as readout for chemical
sensing and analysis has been developed. The resonant wavelength shift of PC resonator is …