Two-photon physics, also called gamma–gamma physics, is a branch of particle physics that describes the interactions between two photons. Normally, beams...

example, two photons may interact indirectly through virtual electron–positron pairs. Such photon–photon scattering (see two-photon physics), as well...

In atomic physics, two-photon absorption (TPA or 2PA), also called two-photon excitation or non-linear absorption, is the (almost) simultaneous absorption...

In physics, a photon gas is a gas-like collection of photons, which has many of the same properties of a conventional gas like hydrogen or neon – including...

particles precipitating out of colliding photon jets (see two-photon physics). Currently, two-photon physics studies creation of various fermion pairs...

Two-photon excitation microscopy (TPEF or 2PEF) is a fluorescence imaging technique that is particularly well-suited to image scattering living tissue...

Model of Particle Physics with a new abelian U(1) gauge symmetry. The corresponding new spin-1 gauge boson (i.e., the dark photon) can then couple very...

chamber, leading to the 1948 Nobel Prize in Physics. If the photon is near an atomic nucleus, the energy of a photon can be converted into an electron–positron...

Time-resolved two-photon photoelectron (2PPE) spectroscopy is a time-resolved spectroscopy technique which is used to study electronic structure and electronic...

electron–positron creation, is a form of pair production governed by two-photon physics. Bhabha scattering Pair production Annihilation radiation Meitner–Hupfeld...

Readout System in a Photochromic Polymer under Two-Photon Excitation". Japanese Journal of Applied Physics. 41 (8): 5160–5165. Bibcode:2002JaJAP..41.5160A...

In atomic physics, non-degenerate two-photon absorption (ND-TPA or ND-2PA) or two-color two-photon excitation is a type of two-photon absorption (TPA)...

particle physics, a massless particle is an elementary particle whose invariant mass is zero. At present the only confirmed massless particle is the photon. The...

Physics is a branch of science in which the primary objects of study are matter and energy. These topics were discussed across many cultures in ancient...

single-photon source (also known as a single photon emitter) is a light source that emits light as single particles or photons. Single-photon sources...

attraction between two charges—can be thought of as resulting from the exchange of virtual photons between the charges. Virtual photons are the exchange...

Photon energy is transferred to matter in a two-step process. First, energy is transferred to charged particles in the medium through various photon interactions...

L. (1 March 1999). "Quantum effects in one-photon and two-photon interference". Reviews of Modern Physics. 71 (2): S274 – S282. Bibcode:1999RvMPS..71...

Photon-counting computed tomography (PCCT) is a form of X-ray computed tomography (CT) in which X-rays are detected using a photon-counting detector (PCD)...

unsolved problems grouped into broad areas of physics. Some of the major unsolved problems in physics are theoretical, meaning that existing theories...

needed] into two leptons (electrons or muons) and a photon (ℓℓγ), via virtual photon decay. This can happen in three ways; Higgs to virtual photon to ℓℓγ in...

referring to photons as field "quanta" (for instance as light quanta). This procedure is basic to theories of atomic physics, chemistry, particle physics, nuclear...

(not including dark matter), mostly photons and other massless force carriers. The Standard Model of particle physics contains 12 flavors of elementary...

In particle physics, a boson (/ˈboʊzɒn/ /ˈboʊsɒn/) is a subatomic particle whose spin quantum number has an integer value (0, 1, 2, ...). Bosons form...

Planck: the reluctant revolutionary". Physics World. Retrieved 12 December 2020. Stachel, John (2009). "Bohr and the Photon". Quantum Reality, Relativistic...

concept in quantum mechanics that fundamental entities of the universe, like photons and electrons, exhibit particle or wave properties according to the experimental...

physics, the Hanbury Brown and Twiss (HBT) effect is any of a variety of correlation and anti-correlation effects in the intensities received by two detectors...

A quantum dot single-photon source is based on a single quantum dot placed in an optical cavity. It is an on-demand single-photon source. A laser pulse...

Particle physics or high-energy physics is the study of fundamental particles and forces that constitute matter and radiation. The field also studies combinations...

36.1801R. doi:10.1007/s10701-006-9081-9. S2CID 14008778. Kragh, Helge (2014). "Photon: New light on an old name". arXiv:1401.0293 [physics.hist-ph]....