The two major limitations of any slow-light structure are dispersion and loss; dispersion limits the available bandwidth, that is, the information content that can be slowed down or stored ...

This means that the light leaving the prism is spread out into its different colours, a process called dispersion. This experiment is recorded as first being carried out by Isaac Newton ...

Because each colour has a different wavelength ... This means that the light leaving a prism is separated into its spectrum colours. This a process called dispersion.

Sub-wavelength optics is the study of light on a spatial scale smaller than its wavelength. Conventionally, the minimum length scale on which a beam of light can operate is equal to half its ...