Compared to the widely used compound semiconductor photoelectric sensors, all-silicon
photoelectric sensors have the advantage of easy mass production because they are …

Photodetectors integrating substrates and semiconductor materials are increasingly
attractive for applications in optical communication, optical sensing, optical computing, and …

A terahertz absorber with controllable and switchable bandwidth that is insensitive to
polarization is of great interest. Here, we propose and demonstrate a metasurface absorber …

The rapid development of photonic integrated circuits demands the design of efficient and
compact waveguide devices such as waveguide tapers and crossings. Some components in …

Subwavelength engineering and utilizing phase-change materials with large contrast in their
optical properties have become powerful design tools for integrated silicon photonics …

The arbitrary ratio power splitter is widely used in photonic integrated circuits (PICs), for
signal monitoring, power equalization, signal feedback, and so on. Here we designed a …

Abstract Silicon-on-insulator (SOI) waveguides with different geometries have been
employed to design various integrated optical components. Reducing the bending radius of …

Different material platforms, each offering a set of unique advantages, have been introduced
for photonic integrated circuits. These platforms may be used in the same photonic chip to …

Because of their ultra-light, ultra-thin, and flexible design, metalenses exhibit significant
potential in the development of highly integrated cameras. However, the performances of …

Most of the natural materials have very weak interaction with the terahertz (THz)
electromagnetic waves. Designing an absorber in the THz range is of considerable interest …