Results 301 to 310 of about 490,732 (344)

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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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.
J. Olsson, null Desy
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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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