Linked from

The 121 pages that link to Photon, each with the reason it gives.

• SpectroscopyRelated: Photon energy determines which transitions radiation can induce or detect.

• Electromagnetic spectrumRelated: Photon energy rises across the spectrum as frequency increases.

• Electromagnetic radiationRelated: Photon energy provides the particle description of radiation and depends on its frequency.

• Quantum electrodynamicsRelated: QED treats electromagnetic radiation and interactions in terms of photon-field quanta.

• Big Bang nucleosynthesisRelated: Energetic photons destroyed newly formed deuterium until the universe cooled sufficiently.

• Spectral lineRelated: A photon emitted or absorbed in a transition carries the line's energy.

• Speed of lightRelated: In vacuum, photons propagate at the invariant speed associated with light.

• Thermal radiationRelated: A quantum description treats thermal radiation as a population of photons.

• Visible spectrumRelated: Visible light can be described as photons whose energies correspond to visible wavelengths.

• Bohr modelRelated: The model describes spectral emission and absorption as photon exchange during transitions.

• Planck's lawRelated: Planck's quantized energy elements correspond to photons in the quantum account of radiation.

• Absorption spectrumRelated: Absorption occurs when a photon supplies energy allowed by the absorbing substance.

• Pair productionRelated: Photons provide the energy in the best-known pair-production mechanisms.

• Mass–energy equivalenceRelated: Photons carry energy despite having no rest mass, showing that energy is not limited to massive objects.

• Absorption spectroscopyRelated: Absorption occurs when matter takes up photons with suitable energies.

• Atomic spectrumRelated: An atomic transition emits or absorbs a photon whose energy matches the level spacing.

• UltravioletRelated: Ultraviolet photons carry more energy than visible-light photons.

• Atomic spectroscopyRelated: Absorption and emission lines correspond to photons with specific energies.

• BremsstrahlungRelated: Each bremsstrahlung emission transfers energy and momentum in a photon.

• Emission spectrumRelated: Emission processes produce photons whose energies determine spectral positions.

• Atomic emission spectrumRelated: The energy of each emitted photon matches the gap between the atom's states.

• Latent imageRelated: Absorbed photons provide the energy that initiates photographic exposure.

• Rydberg formulaRelated: A transition’s energy difference is carried by the emitted or absorbed photon.

• Absorption (electromagnetic radiation)Related: Absorption transfers a photon's energy to matter.

• ChemiluminescenceRelated: Each emitted unit of chemiluminescent light is a photon.

• Corpuscular theory of lightRelated: Photons provide the modern particle concept, but they are not Newton’s material corpuscles.

• Spontaneous emissionRelated: It carries away the energy released in the transition.

• Balmer seriesRelated: Each Balmer transition emits or absorbs a photon with a characteristic energy.

• Sheldon GlashowRelated: Electroweak symmetry leaves the photon as the carrier of the unbroken electromagnetic force.

• Hydrogen spectrumRelated: Each transition emits or absorbs a photon whose energy matches the level difference.

• MicrowaveRelated: Microwave photons have much less energy than visible-light photons and do not ionize atoms.

• Ozone–oxygen cycleRelated: A photon’s energy determines whether it can break an O₂ or O₃ bond.

• Satyendra Nath BoseRelated: Bose’s statistical derivation counted indistinguishable photons in radiation.

• Optical spectroscopyRelated: Photon energy determines which transitions a wavelength can excite or probe.

• Rydberg constantRelated: An atomic transition emits or absorbs a photon whose wavelength encodes the predicted wavenumber.

• Einstein coefficientsRelated: Absorption and emission change an atom's state by exchanging photons.

• Inelastic scatteringRelated: Photon scattering can shift photon energy when the target absorbs or supplies energy.

• Electron–positron annihilationRelated: Photons are the most common products of electron–positron annihilation.

• Hydrogen-alphaRelated: The transition releases a photon whose energy corresponds to the line’s wavelength.

• LightRelated: Photoreceptors respond to light by absorbing individual photons.

• Arthur ComptonRelated: Compton explained the scattered X-ray as a photon transferring energy and momentum to an electron.

• Planck relationRelated: For a photon, the relation gives the energy associated with its frequency.

• Roy J. GlauberRelated: His account treats optical fields as quantum systems whose photon statistics matter.

• Atomic emission spectroscopyRelated: Each atomic transition releases a photon whose energy sets an emission wavelength.

• Astronomical instrumentationRelated: Photon counting sets fundamental limits on measurements of faint celestial sources.

• High-energy astrophysicsRelated: Photon energy distinguishes X-rays and gamma rays from lower-energy light.

• Radiation (physics)Related: Photons describe electromagnetic radiation in its particle-like interactions.

• Furry's theoremRelated: Each photon vertex contributes one electromagnetic coupling to the loop amplitude.

• Planck postulateRelated: Einstein later treated light itself as consisting of energy quanta.

• QED vacuumRelated: Photon-field modes have vacuum fluctuations even when no real photons are present.