“Blue wavelengths of light are damaging to many forms of life, and glare from unshielded light compromises road safety and infiltrates bedrooms, suppressing melatonin production, undermining sleep ...

Superconducting undulators have become indispensable in the development of modern light sources, including synchrotrons and free electron lasers. By utilising arrays of superconducting magnets, these ...

How dark is the night sky where you live? If you’re in an urban area, the answer will likely be “not dark at all”. The pervasiveness of artificial light – be it in the form of streetlamps, billboards, ...

Greetings stargazers. Everything we know about things outside of our solar system is from the light we receive. I am using ...

For hundreds of a millions of years, the universe existed in the dark ages—an epoch when only primordial gasses existed. Then, a period of reionization, cleared away this foggy existence an introduced ...

Nanolasers are ultrasmall laser devices with dimensions on the nanoscale. They generate coherent light through the process of stimulated emission, similar to conventional lasers, but at a much smaller ...

Physicists from Trinity College Dublin believe new insights into the behavior of light may offer a new means of solving one ...

Quantum light generated through spontaneous four-wave mixing (SFWM) process in nonlinear materials, such as entangled photon pairs and single photons, is an important resource for various emerging ...