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 …

On-chip mode-manipulation is one of the most important physical fundamentals for many
photonic integrated devices and circuits. In the past years, great progresses have been …

Silicon has been the material of choice of the photonics industry over the last decade due to
its easy integration with silicon electronics, high index contrast, small footprint, and low cost …

Coupling of light to and from integrated optical circuits has been recognized as a major
practical challenge since the early years of photonics. The coupling is particularly difficult for …

Efficient light energy transfer between optical waveguides has been a critical issue in
various areas of photonics and optoelectronics. Especially, the light coupling between …

Nanophotonic beamsplitters are fundamental building blocks in integrated optics, with
applications ranging from high speed telecom receivers to biological sensors and quantum …

Packaging of photonic integrated circuit (PIC) chips is an essential and critical step before
they can be integrated into functional optoelectronic systems. Photonic packaging is …

We report on the experimental demonstration and analysis of a new waveguide principle
using subwavelength gratings. Unlike other periodic waveguides such as line-defects in a …

Nanophotonics finds ever broadening applications requiring complex components with
many parameters to be simultaneously designed. Recent methodologies employing …