Results 311 to 320 of about 470,411 (348)

Photon photon interactions

Nuclear Physics B - Proceedings Supplements, 1988
Recent results in γγ physics are presented. They include a number of new measurements of the γγ widths of members of the JPC = 0−+ and 2++ SU(3) nonets, a search for 0-+ radial excitations, studies of low mass ππ production and new results in the measurements of exclusive βc and inclusive D∗± production.
Desy, J. Olsson
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The scattering of photons by photons

Il Nuovo Cimento, 1965
The general expressions for the five independent amplitudes of photon-photon scattering are given in a rather compact form. It has been shown in detail, in a previous paper (1), that this result is easily obtained for all the values of the energy and of the angle with the aid of the dispersion relations techniques.
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Speckle imaging, photon by photon

Applied Optics, 1979
A speckle processing prescription is described that should yield diffraction-limited performance for large telescopes in spite of atmospheric turbulence and at light levels as low as 100 photons/sec in the picture. The prescription involves rearranging the spatial frequency components of running glimpses of the scene according to the complex ...
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Strong Photon-Photon Correlations in Photonic Crystals

Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, 2007
We solve exactly two-photon transport in photonic-crystal waveguide coupled to a two-level system. Notable features include two-photon bound state that behaves as a composite particle, and effective attractive or repulsive interactions in space for photons.
Shanhui Fan, Jung-Tsung Shen
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Photon-plasmon-photon interaction

Physical Review A, 1991
A theory of photon-plasmon-photon three-wave interaction is presented. An electromagnetic wave launched into the plasma turbulence interacts through the wave-particle interaction resulting in the emission of an electromagnetic wave with frequency up-shifted.
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The Photon-Photon System

1976
Experiments for the observations of processes involving photon-photon collisions are extremely difficult to perform, because they are crossed-beam experiments which require the highest intensities and the most sensitive detection equipment. For this reason the photon-photon cross sections are at the present time still of little interest to the ...
J. M. Jauch, F. Rohrlich
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Photon‐Photon Annihilation

AIP Conference Proceedings, 1980
I review recent progress (mostly theoretical) in our knowledge of photon‐photon interactions at high energies, concentrating on resonance production and on reactions which expose the pointlike coupling of photons to quarks: deep inelastic scattering on a photon or electron target and γγ‐induced jet production at large transverse momentum.
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To Scatter a Photon by a Photon

American Journal of Physics, 1966
This paper gives a more detailed description of the “x-ray-flashbulb” experiment for observing the scattering of light by light in vacuum. It is shown here that at least ten to twenty scattering events can be initiated by two x-ray flashbulbs, properly oriented and synchronized to flash together in an appropriate experimental arrangement.
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Effective photon theory and photon-photon scattering

Journal of Quantitative Spectroscopy and Radiative Transfer, 1981
Abstract It is shown that the assumptions made by Eimerl in deriving the unusually high photon-photon scattering cross section from the effective photon theory of Panarella are unfounded.
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Engineering Hydrogel‐Based Biomedical Photonics: Design, Fabrication, and Applications

Advanced Materials, 2021
Alexandra P Marques, Carlos F Guimarães, Rajib Ahmed   +2 more
exaly