Optical Beam Propagation In Turbulent Media
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Author | : Ronald Louis Fante |
Publisher | : |
Total Pages | : 88 |
Release | : 1975 |
Genre | : Atmospheric turbulence |
ISBN | : |
Download Optical Beam Propagation in Turbulent Media Book in PDF, Epub and Kindle
The most recent developments on the propagation of microwave and optical beams in turbulent media, such as the clear atmosphere are discussed. Among the phenomena considered are beam spreading, beam wander, loss of coherence, scintillations, angle-of-arrival variations, and short pulse effects. Also included is a discussion of methods of compensation of the effect of turbulence on communications and imaging systems.
Author | : Ronald L. Fante |
Publisher | : |
Total Pages | : 0 |
Release | : 1975 |
Genre | : Atmospheric turbulence |
ISBN | : |
Download Optical Beam Propagation in Turbulent Media Book in PDF, Epub and Kindle
The most recent developments on the propagation of microwave and optical beams in turbulent media, such as the clear atmosphere are discussed. Among the phenomena considered are beam spreading, beam wander, loss of coherence, scintillations, angle-of-arrival variations, and short pulse effects. Also included is a discussion of methods of compensation of the effect of turbulence on communications and imaging systems.
Author | : Larry C. Andrews |
Publisher | : SPIE-International Society for Optical Engineering |
Total Pages | : 820 |
Release | : 2005 |
Genre | : Science |
ISBN | : |
Download Laser Beam Propagation Through Random Media Book in PDF, Epub and Kindle
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 | : Nelofar Mosavi |
Publisher | : |
Total Pages | : 216 |
Release | : 2017 |
Genre | : |
ISBN | : |
Download Optical and RF Beam Propagation in Turbulent Media Book in PDF, Epub and Kindle
The optical beam spread and the optical beam quality factor in the presence of both an initial quartic phase aberration and atmospheric turbulence is analyzed. We obtain analytical expressions for both the mean-square beam radius and the beam quality factor using the moment method. We compare these expressions to the results from Monte Carlo simulations, which allows us to mutually validate the theory and the Monte Carlo simulation codes. We also discuss the reason for the discrepancy between the moment method and the classical approach for calculating the ensemble-averaged mean-square beam radius in a turbulent atmosphere that is described by Andrews and Phillips and by Fante.
Author | : Hugo Weichel |
Publisher | : SPIE Press |
Total Pages | : 114 |
Release | : 1990 |
Genre | : Science |
ISBN | : 9780819404879 |
Download Laser Beam Propagation in the Atmosphere Book in PDF, Epub and Kindle
Author | : J. W. Strohbehn |
Publisher | : Springer |
Total Pages | : 328 |
Release | : 2014-03-12 |
Genre | : Technology & Engineering |
ISBN | : 9783662311615 |
Download Laser Beam Propagation in the Atmosphere Book in PDF, Epub and Kindle
With contributions by numerous experts
Author | : Michael W. Fitzmaurice |
Publisher | : |
Total Pages | : 196 |
Release | : 1971 |
Genre | : Atmospheric chemistry |
ISBN | : |
Download Experimental Investigations of Optical Propagation in Atmospheric Turbulence Book in PDF, Epub and Kindle
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 | : Ronald Louis Fante |
Publisher | : |
Total Pages | : 48 |
Release | : 1975 |
Genre | : Atmospheric turbulence |
ISBN | : |
Download Propagation in Turbulent Media Book in PDF, Epub and Kindle
In this report the author has reviewed the recent developments on beam propagation in a turbulent medium. These include the effect of the turbulence on beam intensity, spread, coherence, wander, angle of arrival, scintillation and distortion, as well as other related topics.
Author | : Nathan Blaunstein |
Publisher | : CRC Press |
Total Pages | : 334 |
Release | : 2017-09-22 |
Genre | : Computers |
ISBN | : 1351402684 |
Download Optical Waves and Laser Beams in the Irregular Atmosphere Book in PDF, Epub and Kindle
The book introduces optical wave propagation in the irregular turbulent atmosphere and the relations to laser beam and LIDAR applications for both optical communication and imaging. It examines atmosphere fundamentals, structure, and content. It explains specific situations occurring in the irregular atmosphere and for specific natural phenomena that affect optical ray and laser beam propagation. It emphasizes how to use LIDAR to investigate atmospheric phenomena and predict primary parameters of the irregular turbulent atmosphere and suggests what kinds of optical devices to operate in different atmospheric situations to minimize the deleterious effects of natural atmospheric phenomena.
Author | : Walid Ali Atia |
Publisher | : |
Total Pages | : 272 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download Theoretical and Experimental Investigations of Laser Beam Propagation in Turbulent Media Book in PDF, Epub and Kindle