White light is made of a spectrum of different colours ... prism is spread out into its different colours, a process called dispersion. This experiment is recorded as first being carried out ...

Lasers are known for the monochromatic nature of their light, so much so that you might never have thought there could be such a thing as a white laser. But in the weird world of physics ...

The spectral dispersion of ultrashort pulses allows the simultaneous focusing of light in both space and time, which creates so-called spatiotemporal foci. Such space–time coupling may be ...