(physics) The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson.

plural of photon

(sciences) The science and technology of generating and controlling photons, particularly in the visible and near infrared light spectrum.

of, or relating to photons or to photonics

By means of photonics.

(physics) The transmission of light through apertures of dimension smaller than the wavelength of the light by quantum tunnelling

plural of photon belt

The technology discipline related to production of optical switching electronic devices using integrated circuit manufacturing technology

(New Age) A mythical dangerous belt of photons emanating from the Pleiades that will collide with the Earth in the near future according to New Age mystics.

(of a black hole) Synonym of photon sphere