Propagation Of High Energy Laser Beam In The Atmosphere
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Propagation Of High Energy Laser Beam In The Atmosphere
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Author : Charles B. Hogge
language : en
Publisher:
Release Date : 1974
Propagation Of High Energy Laser Beam In The Atmosphere written by Charles B. Hogge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with categories.
Atmospheric turbulence can affect the propagation of laser beams of any power. Thermal blooming, a nonlinear propagation process, can seriously degrade high-energy beams. These two processes are reviewed in detail, with emphasis on parametric effects such as aperture size wavelength, and focal distance. Included in the discussion are such new topics as supersonic slewing and stagnation zone problems. (Author).
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere
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Author : Peter B. Ulrich
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 1990
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere written by Peter B. Ulrich and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Technology & Engineering categories.
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Author :
language : en
Publisher:
Release Date : 1992
written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere Ii
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Author : Peter B. Ulrich
language : en
Publisher:
Release Date : 1991
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere Ii written by Peter B. Ulrich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Technology & Engineering categories.
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere
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Author : Peter B. Ulrich
language : en
Publisher:
Release Date : 1990
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere written by Peter B. Ulrich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Electronic books categories.
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere
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Author : Peter B. Ulrich
language : en
Publisher:
Release Date : 1990
Propagation Of High Energy Laser Beams Through The Earth S Atmosphere written by Peter B. Ulrich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
Propagation Of High Energy Laser Beams In Various Environments
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Author :
language : en
Publisher:
Release Date : 2007
Propagation Of High Energy Laser Beams In Various Environments written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
We report the results of our theoretical study on the key physical processes that affect the propagation of nigh energy lasers in the atmosphere. The main objective of this study is to discuss the optimum laser wavelength and power for efficient propagation in maritime, desert, rural and urban atmospheric environments. The theoretical/numerical model used in this study includes the effects of aerosol and molecular scattering, aerosol heating and vaporization, thermal blooming due to aerosol and molecular absorption, atmospheric turbulence, and beam quality. These processes are modeled in a fully three-dimensional and time-dependent manner. It is found that aerosol particles are particularly important because they result in laser scattering, absorption and enhanced thermal blooming. In the water vapor transmission windows, the total absorption coefficient driving thermal blooming can be caused mainly by aerosols and not water vapor. In certain maritime environments the deleterious effects of aerosols can be reduced by vaporization. Aerosol particles which cannot be vaporized, such as those Consisting of dust, soot, etc., can significantly increase thermal blooming. The optimum wavelength and power for propagation are found for each atmospheric environment.
Time Dependent Propagation Of High Energy Laser Beams Through The Atmosphere Iii
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Author : J. Morris
language : en
Publisher:
Release Date : 1977
Time Dependent Propagation Of High Energy Laser Beams Through The Atmosphere Iii written by J. Morris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with categories.
High Energy Laser Beam Propagation In The Atmosphere
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Author : National Aeronaut Administration (Nasa)
language : en
Publisher:
Release Date : 2020-07-31
High Energy Laser Beam Propagation In The Atmosphere written by National Aeronaut Administration (Nasa) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-31 with categories.
The method of moments is used to define and derive expressions for laser beam deflection and beam radius broadening for high-energy propagation through the Earth s atmosphere. These expressions are augmented with the integral invariants of the corresponding nonlinear parabolic equation that describes the electric field of high-energy laser beam to propagation to yield universal equations for the aforementioned quantities; the beam deflection is a linear function of the propagation distance whereas the beam broadening is a quadratic function of distance. The coefficients of these expressions are then derived from a thin screen approximation solution of the nonlinear parabolic equation to give corresponding analytical expressions for a target located outside the Earth s atmospheric layer. These equations, which are graphically presented for a host of propagation scenarios, as well as the thin screen model, are easily amenable to the phase expansions of the wave front for the specification and design of adaptive optics algorithms to correct for the inherent phase aberrations. This work finds application in, for example, the analysis of beamed energy propulsion for space-based vehicles. Manning, Robert M. Glenn Research Center NASA/TM-2012-217634, E-18279 WBS 439432.04.07.05 METHOD OF MOMENTS; WAVE PROPAGATION; HIGH POWER LASERS; NONLINEAR EQUATIONS; ATMOSPHERIC STRATIFICATION; EARTH ATMOSPHERE; ADAPTIVE OPTICS; POWER BEAMING; ELECTRIC FIELDS
High Energy Laser Beam Propagation In The Atmosphere
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Author : Robert Michael Manning
language : en
Publisher:
Release Date : 2012
High Energy Laser Beam Propagation In The Atmosphere written by Robert Michael Manning and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.