Laser Beam Propagation in the Atmosphere PDF Download

Author: Hugo Weichel
Publisher: SPIE Press
ISBN: 9780819404879
Category : Science
Languages : en
Pages : 114

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Author: Jason Daniel Schmidt
Publisher: Society of Photo Optical
ISBN: 9780819483263
Category : Science
Languages : en
Pages : 196

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Numerical Simulation of Optical Wave Propagation is solely dedicated to wave-optics simulations. The book discusses digital Fourier transforms (FT), FT-based operations, multiple methods of wave-optics simulations, sampling requirements, and simulations in atmospheric turbulence.

Author: J. W. Strohbehn
Publisher: Springer
ISBN: 9783662311615
Category : Technology & Engineering
Languages : en
Pages : 328

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With contributions by numerous experts

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 623

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Author: Michael E. Thomas
Publisher: Oxford University Press
ISBN: 0195357973
Category : Science
Languages : en
Pages : 578

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Book Description
A typical optical system is composed of three basic components: a source, a detector, and a medium in which the optical energy propagates. Many textbooks cover sources and detectors, but very few cover propagation in a comprehensive way, incorporating the latest progress in theory and experiment concerning the propagating medium. This book fulfills that need. It is the first comprehensive and self-contained book on this topic. It is useful reference book for researchers, and a textbook for courses like Laser Light Propagation, Solid State Optics, and Optical Propagation in the Atmosphere.

Author: Larry C. Andrews
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Science
Languages : en
Pages : 820

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Book Description
Since publication of the first edition of this text in 1998, there have been several new, important developments in the theory of beam wave propagation through a random medium, which have been incorporated into this second edition. Also new to this edition are models for the scintillation index under moderate-to-strong irradiance fluctuations; models for aperture averaging based on ABCD ray matrices; beam wander and its effects on scintillation; theory of partial coherence of the source; models of rough targets for ladar applications; phase fluctuations; analysis of other beam shapes; plus expanded analysis of free-space optical communication systems and imaging systems.

Author: Larry C. Andrews
Publisher: SPIE Press
ISBN: 9780819441034
Category : Science
Languages : en
Pages : 408

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Book Description
Renewed interest in laser communication systems has sparked development of useful new analytic models. This book discusses optical scintillation and its impact on system performance in free-space optical communication and laser radar applications, with a detailed look at propagation phenomena and the role of scintillation on system behavior. Intended for practicing engineers, scientists, and students.

Author: Larry C. Andrews
Publisher: Society of Photo Optical
ISBN: 9780819453181
Category : Technology & Engineering
Languages : en
Pages : 96

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Book Description
The material in this Field Guide is a condensed version of similar material found in two textbooks: Laser Beam Propagation through Random Media (SPIE Vol. PM53) and Laser Beam Scintillation with Applications (SPIE Vol. PM99). Topics chosen for this concise presentation include a review of classical Kolmogorov turbulence theory, Gaussian-beam waves in free space, and atmospheric effects on a propagating optical wave. These atmospheric effects have great importance in a variety of applications like imaging, free space optical communications, laser radar, and remote sensing. This Guide presents tractable mathematical models from which the practitioner can readily determine beam spreading, beam wander, spatial coherence radius (Fried's parameter), angle of arrival fluctuations, scintillation, aperture averaging effects, fade probabilities, bit error-rates, and enhanced backscatter effects, among others.

Author: Michael W. Fitzmaurice
Publisher:
ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 196

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Book Description
The pertinent theoretical background and the results of a group of experiments conducted over 0.4- and 1.17-km near-ground horizontal ranges are presented. (1) The log-amplitude variances for HeNe (0.633 μm) and CO2 (10.6 μm) laser beams were found to have a ratio of 26.8, which is in close agreement with the predictions of Rytov-based spherical-wave theory. (2) Published measurements of the saturation level of the log-amplitude variance are reviewed and several inconsistencies noted. (3) The spatial correlation function of irradiance field was measured and found to agree with theory. The degree of correlation between different frequency beams which had traversed the same optical path was also measured and compared to theory. The data exhibited an unacceptably large scatter and did not show the wavelength dependence. (4) The log-normal, Rayleigh, and Rice probability distributions are discussed in terms of their applicability to irradiance statistics. Relatively weak 10.6 μm irradiance fluctuations were found to be equally well described by the log-normal and Rice distributions; strong fluctuations obtained at 0.488 μm were clearly best described by the log-normal distribution.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 628

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Book Description
A majority of military optical systems operate in the atmoshphere and their performance is often degraded by weather. For several decades researchers have studied in-depth the performance limitations imposed by the atmosphere and devised techniques to get around these problems. The purpose of this symposium was to bring together and update our understanding of atmospheric optical propagation, present a comprehensive review of the state-of-the-art, and provide interaction among the key researchers in the NATO community.