For the preparation of photonic crystal structures with nanoscale three-dimensional spatial resolution inside the crystal, new femtosecond laser processing technologies are urgently needed.

Researchers have developed a blueprint for weaving hopfions—complex, knot-like light structures—into repeating spacetime ...

Scientists develop a means of creating 'hopfion' crystals, complex, knot-like patterns of light that repeat across both space and time.

Photonic Dirac cone is a special kind of degenerate state with linear dispersion, which is ubiquitous in various two-dimensional photonic crystals.

There are many challenges when trying to create a three-dimensional photonic crystal. There are stringent requirements to not just make these objects, but also to study them.

A new technical paper titled “Three-dimensional photonic integration for ultra-low-energy, high-bandwidth interchip data links” was published by researchers at Columbia University, Cornell University, ...

A Step Closer to Four-dimensional Photonic Crystals The key parameter of a photonic time crystal is its bandgap in momentum space. Momentum is a measure of the direction in which light propagates.

Might two bent crystals pave the way to finding new physics? The Standard Model of particle physics describes our world at its smallest scales exceptionally well. However, it leaves some important ...

An internationally joint research group between Singapore and Japan has unveiled a blueprint for arranging exotic, knot-like patterns of light into ...

A team of researchers designed a two-dimensional photonic time crystal that they say could have applications in technologies like transmitters and lasers. Despite their name, photonic time ...