A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic...

Photon energy is the energy carried by a single photon. The amount of energy is directly proportional to the photon's electromagnetic frequency and thus...

Look up Photon or photon in Wiktionary, the free dictionary. A photon is an elementary particle of light. Photon may also refer to: Photon (comics), two...

frequency of the photon, and h is the Planck constant. Thus, higher frequency photons have more energy. For example, a 1020 Hz gamma ray photon has 1019 times...

The Photons was a punk/new wave band active between 1977 and 1978. They are most notable for their vocalist Steve Strange, who went on to form Visage...

Photon counting is a technique in which individual photons are counted using a single-photon detector (SPD). A single-photon detector emits a pulse of...

wavelengths less than 10 picometers (1×10−11 m), gamma ray photons have the highest photon energy of any form of electromagnetic radiation. Paul Villard...

two-photon absorption (TPA or 2PA), also called two-photon excitation or non-linear absorption, is the simultaneous absorption of two photons of identical...

A photon sphere or photon circle arises in a neighbourhood of the event horizon of a black hole where gravity is so strong that emitted photons will not...

In particle physics, soft photons are photons having photon energies much smaller than the energies of the particles participating in a particular scattering...