The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

Along with the rapid development of micro/nanofabrication technology, the past few decades
have seen the flourishing emergence of subwavelength-structured materials and interfaces …

Recently, there has been an explosion of interest in metalenses for imaging. The interest is
primarily based on their subwavelength thicknesses. Diffractive gratings have been used as …

On-chip integrated mode-division multiplexing (MDM) is an emerging technique for large-
capacity data communications. In the past few years, while several configurations have been …

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

Electromagnetic coupling is ubiquitous in photonic systems and transfers optical signals
from one device to the other, creating crosstalk between devices. While this allows the …

Nanophotonic devices with high densities are extremely attractive because they can
potentially merge photonics and electronics at the nanoscale. However, traditional …

Adiabatic waveguide taper and on-chip wavelength demultiplexer are the key components
of photonic integrated circuits. However, these two kinds of devices which were designed by …

To prevent the crosstalk between adjacent waveguides in photonic integrated circuits, the
minimum thickness of the cladding layers is around half a wavelength, which imposes a …

Metasurfaces consisted of subwavelength nanostructures can extremely interact with light
and manipulate the characteristics of amplitude, phase, and polarization. In particular, on …