Unlike existing photodetectors that construct and integrate wavelength- and/or polarization-sensitive elements in space or time to improve the detection ability (range and sensitivity), this ...

Researchers have synthesized a collection of nanoparticles, known as carbon dots, capable of emitting multiple wavelengths of light from a single particle. Additionally, the team discovered that the ...

Dispersion is an inherent feature of electromagnetic waves. It allows light to behave differently at different wavelengths, ...

A project from the Harvard SEAS lab of metamaterials developer Federico Capasso could help address the issue of unwanted light dispersion in optical systems. This could be a particular benefit for ...

The speed of light varies in materials, impacting fiber optics, laser systems, and semiconductor lithography through complex ...

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many ...

As data rates in optical networks increase, designers need to pay increasing attention to peculiarities in the fiber-optic medium.One of the most important of these peculiarities is dispersion, ...