Silicon photonics is playing a key role in areas as diverse as high-speed optical
communications, neural networks, supercomputing, quantum photonics, and sensing, which …

Segmenting silicon waveguides at the subwavelength scale produce an equivalent
homogenous material. The geometry of the waveguide segments provides precise control …

Subwavelength structures such as subwavelength gratings (SWGs) and subwavelength
metamaterials are capable of tailoring the optical properties of materials and controlling the …

Subwavelength grating (SWG) structures are an essential tool in silicon photonics, enabling
the synthesis of metamaterials with a controllable refractive index. Here we propose, for the …

It is a remarkable and straightforward approach to customize the dispersion and nonlinear
properties of the photonic devices without varying the composition of the material by …

We present several fundamental photonic building blocks based on suspended silicon
waveguides supported by a lateral cladding comprising subwavelength grating …

Graded‐index materials offer virtually complete control over light propagation in integrated
photonic chips but can be challenging to implement. Here, an anisotropic graded‐index …

Subwavelength gratings (SWG) are photonic structures with a period small enough to
suppress diffraction, thereby acting as artificial dielectric materials, also called all-dielectric …

In the late nineteenth century, Heinrich Hertz demonstrated that the electromagnetic
properties of materials are intimately related to their structure at the subwavelength scale by …

We show that silicon-based metagratings capable of large-angle, multifunctional
performance can be realized using inverse freeform design. These devices consist of …