A recent break-through in the domain of photonic integration is the use of sub-wavelength
waveguide grating structures to engineer the refractive index of integrated components …

A subwavelength grating waveguide was numerically analyzed by a 3D finite element
method. Waveguide parameters as core height, width, duty cycle, and index contrast were …

Subwavelength grating waveguides represent a flexible and perspective alternative to
standard silicon-on-insulator nanophotonic waveguides. In such structures, waves …

Subwavelength waveguide gratings (SWG) are locally periodic structures with parameters
that may vary slowly on the scale of a wavelength. Here the implementation of a Lüneburg …

We review recent advances in subwavelength and diffractive structures in planar
waveguides. First, we present a new type of microphotonic waveguide, exploiting the …

The propagation characteristics of a subwavelength grating (SWG) waveguide are analyzed
by an efficient frequency domain finite element approach. An equivalent continuous …

We report on a new waveguide principle using subwavelength gratings. It is known that
diffraction effects are suppressed for waves propagating in materials structured at the …

Coupling light into or out of a photonic integrated circuit is often accomplished by
establishing a vertical link between a single mode optical fibre and a resonant waveguide …

This paper examines two different approaches for grating assisted optical interconnects
between waveguides composed of dissimilar materials, ie evanescent and projection …

In integrated photonic circuits, the refractive-index contrast is usually set by the choice of the
material platform. For example, for silicon photonic circuits operating at a wavelength near l …