Results 311 to 320 of about 497,552 (342)
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Speckle imaging, photon by photon
Applied Optics, 1979A 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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Photon-photon scattering in effective-photon theory
Journal of Quantitative Spectroscopy and Radiative Transfer, 1978Abstract Effective photon theory of laser-induced gas breakdown is shown to imply a very large photon-photon scattering cross section in the vacuum, of the order of 10 -22 cm 2 . This could be seen using crossed laser beams of moderate intensity, about 1 MW/cm 2 .
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Laser & Photonics Reviews, 2009
AbstractSilicon photonics is no longer an emerging field of research and technology but a present reality with commercial products available on the market, where low‐dimensional silicon (nanosilicon or nano‐Si) can play a fundamental role. After a brief history of the field, the optical properties of silicon reduced to nanometric dimensions are ...
Daldosso, Nicola, Pavesi, Lorenzo
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AbstractSilicon photonics is no longer an emerging field of research and technology but a present reality with commercial products available on the market, where low‐dimensional silicon (nanosilicon or nano‐Si) can play a fundamental role. After a brief history of the field, the optical properties of silicon reduced to nanometric dimensions are ...
Daldosso, Nicola, Pavesi, Lorenzo
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Journal of Lightwave Technology, 2003
Photonic crystal fibers guide light by corralling it within a periodic array of microscopic air holes that run along the entire fiber length. Largely through their ability to overcome the limitations of conventional fiber optics—for example, by permitting low-loss guidance of light in a hollow core—these fibers are proving to have a multitude of ...
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Photonic crystal fibers guide light by corralling it within a periodic array of microscopic air holes that run along the entire fiber length. Largely through their ability to overcome the limitations of conventional fiber optics—for example, by permitting low-loss guidance of light in a hollow core—these fibers are proving to have a multitude of ...
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Applied Optics, 1968
The fundamentals of photon counting using photomultipliers are described, including criteria for selecting suitable photomultipliers, some of the precautions that must be taken in using these devices, and methods of calculating the counting errors that may occur under various conditions of measurement.
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The fundamentals of photon counting using photomultipliers are described, including criteria for selecting suitable photomultipliers, some of the precautions that must be taken in using these devices, and methods of calculating the counting errors that may occur under various conditions of measurement.
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2015
In this entry, the geometry, the physical effects, and the materials of the main optical switching technologies are reviewed. Some possible applications and performance are also summarized.
CIMINELLI, Caterina +1 more
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In this entry, the geometry, the physical effects, and the materials of the main optical switching technologies are reviewed. Some possible applications and performance are also summarized.
CIMINELLI, Caterina +1 more
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Nuclear Physics B - Proceedings Supplements, 2003
A photon collider interaction region has the possibility of expanding the physics reach of a future TeV scale electron-positron collider. A survey of ongoing efforts to design the required lasers and optics to create a photon collider is presented in this paper.
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A photon collider interaction region has the possibility of expanding the physics reach of a future TeV scale electron-positron collider. A survey of ongoing efforts to design the required lasers and optics to create a photon collider is presented in this paper.
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Photonics for artificial intelligence and neuromorphic computing
Nature Photonics, 2021Bhavin J Shastri +2 more
exaly
Engineered disorder in photonics
Nature Reviews Materials, 2020Sunkyu Yu, Cheng Wei Qiu, Yidong Chong
exaly