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

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

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

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

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

Ultra-compact, densely integrated optical components manufactured on a CMOS-foundry
platform are highly desirable for optical information processing and electronic-photonic co …

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 …

We present perfectly vertical grating couplers for the 220 nm silicon-on-insulator platform
incorporating subwavelength metamaterials to increase the minimum feature sizes and …

As most integrated optics platforms, silicon offers only a fixed set of material refractive
indices for designing devices. The ability of sub-wavelength patterned structures to …

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 …