Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere II written by Peter B. Ulrich and published by . This book was released on 1991 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere II written by Peter B. Ulrich and published by . This book was released on 1991 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere II written by Peter B. Ulrich and published by . This book was released on 1991 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High Energy Laser Beams Through the Earth s Atmosphere written by Peter B. Ulrich and published by . This book was released on 1990 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere written by Peter B. Ulrich and published by SPIE-International Society for Optical Engineering. This book was released on 1990 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere written by Peter B. Ulrich and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High energy Laser Beams Through the Earth s Atmosphere written by and published by . This book was released on 1990 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Laser Beam Propagation in the Atmosphere written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-07-31 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Time dependent Propagation of High energy Laser Beams Through the Atmosphere written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Various factors that can affect thermal blooming in stagnation zones are examined, including stagnation-zone motion, longitudinal air motion in the neighborhood of the stagnation zone, and the effects of scenario noncoplanarity. Of these effects, only the last offers any reasonable hope of reducing the strong thermal blooming that normally accompanies stagnation zones; in particular, noncoplanarity should benefit multipulse more than cw beams. The methods of treating nonhorizontal winds hydrodynamically for cw and multipulse steady-state sources are discussed. Pulse ''self-blooming'' in the triangular pulse approximation is discussed in the context of both single and multipulse propagation. It is shown that self-blooming and multipulse blooming cannot be treated independently.
Download or read book High Energy Laser Beam Propagation in the Atmosphere written by Robert M. Manning and published by BiblioGov. This book was released on 2013-06 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Time Dependent Propagation of High Energy Laser Beams Through the Atmosphere III written by J. Morris and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Time Dependent Propagation of High Energy Laser Beams Through the Atmosphere III written by J. R. Morris and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Beam Propagation in the Atmosphere written by Hugo Weichel and published by SPIE Press. This book was released on 1990 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Time dependent Propagation of High energy Laser Beams Through the Atmosphere IV written by J. R. Morris and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Laser Beam Propagation in the Atmosphere written by Robert Michael Manning and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of High Energy Laser Beam in the Atmosphere written by Charles B. Hogge and published by . This book was released on 1974 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
