2 edition of Propagation of an elliptical laser beam through the turbulent atmosphere (vertical beams) found in the catalog.
Propagation of an elliptical laser beam through the turbulent atmosphere (vertical beams)
R. J Lataitis
by U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Wave Propagation Laboratory, For sale by the National Technical Information Service in Boulder, Colo, Springfield, Va
Written in English
|Statement||Richard J. Lataitis, James H. Churnside|
|Series||NOAA technical memorandum ERL WPL -- 165, NOAA technical memorandum ERL WPL -- 165|
|Contributions||Churnside, James H, Wave Propagation Laboratory|
|The Physical Object|
|Pagination||iii, 13 p. :|
|Number of Pages||13|
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A particle crossing through the interference region in Figure 2(a) will develop a clean oscillation with a Gaussian envelope as the laser operates in the TEM 00 mode. This is the Transverse Electromagnetic Modes (TEM) of the laser beam, which is Cited by: 6. American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA
Abstract: "This book explores one of the most exciting and promising areas of modern optics, which deals with optical beams in which energy propagates in space along a spiral path. Vortex laser beams are an "optical tornado" that causes energy to propagate in space on a spiral, producing a "black spot" devoid of light in the center. This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.
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Get this from a library. Propagation of an elliptical laser beam through the turbulent atmosphere (vertical beams). [R J Lataitis; James H Churnside; Wave Propagation Laboratory,]. Propagation of flat-topped beam with circular symmetry in a turbulent atmosphere is investigated and has led to the development of an analytical formula for the average intensity.
A tensor method is used to formulate the on-axis scintillation index for an elliptical Gaussian beam (EGB; astigmatic Gaussian beam) propagating in a weak turbulent atmosphere. Statistics of a reflected beam in strong turbulence. Boulder, Colo.: Springfield, VA: U.S. Dept.
of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Wave Propagation Laboratory ; For sale by the National Technical Information Service.
MLA Citation. Churnside, James H. and Wave Propagation Laboratory. Laser Communication and Propagation through the Atmosphere and Oceans VI. Editor(s): Jeremy P. Bos; Optimization of wavefront-sensorless adaptive optics for horizontal laser beam propagation in a realistic turbulence environment Author(s): Hybrid wavefront sensing and image correction algorithm for imaging through turbulent media Author.
() JOURNAL ARTICLES. Wang, Ting-I, R. Lataitis, and G. Ochs (): Laser weather identifier: Present and future, J. Appl. Meteorol., 21, It will be also shown, how the elliptical Gaussian beam can be used to improve the system’s resistance to some deteriorating effects, e.g., building sway.
The third part of the chapter is focused on the analysis of the optimal optical intensity distribution within a radiated laser beam at a transmitter plane which is propagated through free Author: Juraj Poliak, Peter Barcik, Otakar Wilfert. Developed theory describing the propagation of millimeter waves through a turbulent absorbing atmosphere (joint NOAA/Georgia Tech.
project) – Masters Thesis. Undergraduate student attached to the Optical Studies Program Area. Analyzed test data for automated Laser Weather Identifier (rain, snow, sleet, hail). Military Laser Technology for Defense, includes only unclassified or declassified information. The book focuses on military applications that involve propagation of light through the atmosphere and provides basic relevant background technology.
It describ es high-power lasers and masers, including the free-electron laser. Proc. SPIE.Laser Communication and Propagation through the Atmosphere and Oceans VII KEYWORDS: Refractive index, Statistical analysis, Coastal modeling, Data modeling, Turbulence, Space operations, Optical turbulence, Atmospheric modeling, Atmospheric optics, Temperature metrology.
CONFERENCE PROCEEDINGS Papers Presentations Journals. Advanced Photonics Journal of Applied Remote Sensing. Partially coherent vortex beam exhibits some unique and interesting properties, for example, correlation singularities (i.e., ring dislocations) exist in its correlation function, and one can determine the magnitude of the topological charge of the vortex phase from the number of the ring dislocations.
Modulating the coherence of a vortex beam provides a convenient way for Cited by: 4. The propagation dynamics of synthesised vortex beams is compared with that of conventional Laguerre–Gaussian beams in free space and in a turbulent atmosphere. The spectral properties of the synthesised beam, represented as a superposition of different azimuthal modes, are more» determined during its propagation in free : Zhang, Shi-Jie.
Computation of Laser Light Through Atmospheric Turbulence / 89 Layered Model of Propagation Through Turbulent Atmosphere / 90 Generation of Kolmogorov Phase Screens by the Spectral Method / 92 Generation of Kolmogorov Phase Screens from Covariance Using Structure Functions / 94 6 OPTICAL INTERFEROMETERS AND OSCILLATORS Laser beam propagation in the turbulent atmosphere.
2nd ed. Bellington: SPIE Press; Gbur G, Korotkova O. Angular spectrum representation for propagation of arbitrary coherent and partially coherent beams through atmospheric turbulence.
A generalized optical beam expression is developed that presents the majority of the existing optical source fields such as Bessel, Laguerre–Gaussian, dark hollow, bottle, super Gaussian, Lorentz, super-Lorentz, flat-topped, Hermite–sinusoidal-Gaussian, sinusoidal-Gaussian, annular, Gauss–Legendre, vortex, also their higher order modes with their truncated, elegant and Cited by: 9.
It is well known that the propagation properties of a laser beam are closely determined by its amplitude, polarization, phase and coherence. Usually the coherence length of a laser beam is extremely large and the laser beam is assumed to be a coherent beam, which is characterized by the electric field.
A laser beam with small coherence length (i.e., partially Cited by: 1. Beam spreading describes the broadening of the beam size at a target beyond the expected limit due to diffraction as the beam propagates in the turbulent atmosphere. Here, we describe the case of beam spreading for a Gaussian beam, at a distance l from the source, when the turbulence is by: The book focuses on military applications that involve propagation of light through the atmosphere and provides basic relevant background technology.
It describes high-power lasers and masers, including the free-electron laser. Full text of "DTIC ADA Atmospheric Propagation Effects through Natural and Man-Made Obscurants for Visible to MM-Wave Radiation (Les Effets des Conditions Defavorables de Propagation sur les Systemes Optiques, IR et a Ondes Millimetiques)" See other formats.
VolumeIssue 8, August ISSN: (Print) Effects of the turbulent atmosphere and the oceanic turbulence on the propagation of a rotating elliptical Gaussian beam. Jianbin Zhang.The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).Optical vortices are examples of the singularity lines within all complicated scalar fields.
By comparison, electromagnetic vector fields do not generally have nodes in all components simultaneously. However, vector fields possess singularities associated with the parameterization of elliptical and partial polarization rather than by: