A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic...
107 KB (11,733 words) - 23:09, 5 November 2024
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...
5 KB (589 words) - 21:25, 28 October 2024
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...
1 KB (186 words) - 08:01, 15 April 2024
Gamma ray (redirect from Gamma photon)
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...
60 KB (7,399 words) - 22:06, 21 October 2024
Electromagnetic radiation (redirect from Photon radiation)
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...
82 KB (9,691 words) - 15:38, 25 October 2024
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...
2 KB (105 words) - 08:56, 3 May 2024
two-photon absorption (TPA or 2PA), also called two-photon excitation or non-linear absorption, is the simultaneous absorption of two photons of identical...
37 KB (4,664 words) - 16:55, 6 November 2024
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...
13 KB (1,415 words) - 05:59, 15 September 2024
high frequency photons scattering following an interaction with a charged particle, usually an electron. Specifically, when the photon hits electrons...
28 KB (3,865 words) - 04:37, 30 September 2024
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...
12 KB (1,662 words) - 16:23, 29 September 2024
In particle physics, soft photons are photons having photon energies much smaller than the energies of the particles participating in a particular scattering...
2 KB (207 words) - 18:09, 22 August 2024
dark photon (also hidden, heavy, para-, or secluded photon) is a hypothetical hidden sector particle, proposed as a force carrier similar to the photon of...
18 KB (2,220 words) - 12:52, 4 October 2024
Photon antibunching generally refers to a light field with photons more equally spaced than a coherent laser field, a signature being a measured two-time...
7 KB (1,038 words) - 08:01, 25 June 2024
Solar sail (redirect from Photon Sail)
Solar sails (also known as lightsails, light sails, and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight...
98 KB (11,565 words) - 11:49, 2 November 2024
In computer graphics, photon mapping is a two-pass global illumination rendering algorithm developed by Henrik Wann Jensen between 1995 and 2001 that approximately...
11 KB (1,445 words) - 01:30, 2 December 2022
Two-photon physics, also called gamma–gamma physics, is a branch of particle physics that describes the interactions between two photons. Normally, beams...
13 KB (1,572 words) - 13:53, 17 July 2024
Quantum entanglement (redirect from Photon entanglement)
which two photons successively emitted from a calcium atom were shown to be entangled – the first case of entangled visible light. The two photons passed...
107 KB (13,045 words) - 18:40, 7 November 2024
A photon rocket is a rocket that uses thrust from the momentum of emitted photons (radiation pressure by emission) for its propulsion. Photon rockets...
11 KB (1,658 words) - 13:20, 4 October 2024
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...
28 KB (3,333 words) - 02:34, 22 September 2024
Quantum key distribution (redirect from Photon number splitting)
than one photon, then Eve can split off the extra photons and transmit the remaining single photon to Bob. This is the basis of the photon number splitting...
102 KB (11,760 words) - 10:21, 2 November 2024
Two-photon excitation microscopy (TPEF or 2PEF) is a fluorescence imaging technique that is particularly well-suited to image scattering living tissue...
34 KB (3,475 words) - 03:24, 31 October 2024
Photon polarization is the quantum mechanical description of the classical polarized sinusoidal plane electromagnetic wave. An individual photon can be...
32 KB (4,944 words) - 23:07, 25 September 2024
Hong–Ou–Mandel effect (redirect from Two-photon interference)
The Hong–Ou–Mandel effect is a two-photon interference effect in quantum optics that was demonstrated in 1987 by three physicists from the University of...
20 KB (2,724 words) - 18:36, 27 October 2024
proton and an antiproton. Pair production often refers specifically to a photon creating an electron–positron pair near a nucleus. As energy must be conserved...
11 KB (1,390 words) - 00:44, 23 September 2024
Three-photon microscopy (3PEF) is a high-resolution fluorescence microscopy based on nonlinear excitation effect. Different from two-photon excitation...
17 KB (2,109 words) - 13:50, 4 October 2024
Single-photon may refer to: Photon counting devices capable of counting individual photons, for example: Superconducting nanowire single-photon detectors...
391 bytes (76 words) - 15:15, 29 March 2021
A single-photon avalanche diode (SPAD), also called Geiger-mode avalanche photodiode (G-APD or GM-APD) is a solid-state photodetector within the same family...
43 KB (6,039 words) - 19:31, 2 September 2024
Photon upconversion (UC) is a process in which the sequential absorption of two or more photons leads to the emission of light at shorter wavelength than...
19 KB (2,192 words) - 08:03, 6 June 2024
Monica Rambeau (redirect from Photon (Marvel Comics))
latest Ultimates team. The character has also been known as Captain Marvel, Photon, Pulsar, and Spectrum at various points in her history. Monica Rambeau appears...
53 KB (5,840 words) - 16:26, 10 September 2024
The photon structure function, in quantum field theory, describes the quark content of the photon. While the photon is a massless boson, through certain...
16 KB (2,035 words) - 04:05, 29 September 2024