Download or read book Atmospheric Effects on Low Power Laser Beam Propagation written by T. W. Tuer and published by . This book was released on 1980 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed discussion is presented of various theories, experiments, and models pertinent to atmospheric effects on the transmission of low-power laser radiation. The effects of molecules, aerosols, and turbulence and their levels in the atmosphere are considered. Specific conclusions and recommendations are given with regard to the state of knowledge in this field, and to models that can be used to predict atmospheric effects that are relevant to comprehensive personnel safety standards.

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 Atmospheric Effects on Low Power Laser Bea Propagation written by T. W. Tuer and published by . This book was released on with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Effects on Low power Beam Propagation written by Thomas W. Tuer and published by . This book was released on 1980 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Effects Upon Laser Beam Propagation An Annotated Bibliography written by Thomas W. Tuer and published by . This book was released on 1979 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of a literature search on the effects of normally occuring atmospheric molecules, aerosols and turbulence on the propagation of low power lasers is presented in a thoroughly cross referenced bibliography. Included are references to theoretical, experimental and modeling studies that could be relevant to developing models (and their required data bases) for the purpose of establishing comprehensive safety standards for laser illumination of the human eye. Two separate computerized literature searches (with extensive manual editing) were utilized, as well as other sources, to locate these references. Current and planned efforts by several key researchers are also described.

Download or read book Laser Beam Propagation in the Atmosphere written by J. W. Strohbehn and published by . This book was released on 1978 with total page 426 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 Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Atmospheric Turbulence Effects on Laser Beam Propagation Using Multi wavelength Laser Beacons written by Joseph Lee Reierson and published by . This book was released on 2011 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Power Laser Radiation in Atmospheric Aerosols written by V.E. Zuev and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unique properties of laser radiation including its monochromatic properties, polarization, high spectral intensity, coherence, narrow beam divergence, the possibility of controlling the pulse duration and radiation spectrum and, finally, the fact that extremely high power and energy create very favorable conditions for the extensive application of lasers to communi cation systems, systems for the lidar sensing and ultra-high-precision ranging, navigation, remote monitoring of the environment, and many other systems operating in the atmosphere. The operative efficiency of the above systems depends significantly on the state of the atmosphere and the corresponding behavior of laser radia tion propagating through it. This circumstance has stimulated the studies of the above regularities during the passt 10-15 years. For the investiga tions to be carried out the scientists were forced to develop new theories and methods for studying the problem experimentally. Moreover, during such investigations some previously unknown phenomena were observed, among them the nonlinear effects accompanying high-power laser radiation propagating through the atmosphere are of paramount importance. Among the nonlinear effects caused by high-power laser radiation inter action with the atmosphere, the effects accompanying the propagation of high-power radiation through the atmospheric aerosols are of particular interest. Aerosols always occur in the atmosphere. It should be noted that the microphysical and optical characteristics of atmospheric aerosols vary widely, this fact causes a great variety in the features of their inter action with radiation.

Download or read book Atmospheric Effects on CO2 Laser Propagation written by S. S. R. Murty and published by . This book was released on 1978 with total page 116 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).

Download or read book Laser Beams in the Atmosphere written by Vladimir Evseevich Zuev and published by . This book was released on 1982 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Joint Effects of Refraction and Turbulence on Laser Beam Propagation in the Atmosphere written by David A. Bricker and published by . This book was released on 2013 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Atmospheric Turbulence On Laser Beam Propagation written by and published by . This book was released on 1996 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, the effect of atmospheric turbulence on laser beam propagation between tops of the high building and the hill behind our university campus at the distance of 1500m is discussed. The typical range of measurable C(n) values, curvature of the laser beam propagation and the focal spots diameter of the laser beam are given, which are agreement with the theory analysis.

Download or read book Laser Based Optical Detection of Explosives written by Paul M. Pellegrino and published by CRC Press. This book was released on 2018-09-03 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-Based Optical Detection of Explosives offers a comprehensive review of past, present, and emerging laser-based methods for the detection of a variety of explosives. This book: Considers laser propagation safety and explains standard test material preparation for standoff optical-based detection system evaluation Explores explosives detection using deep ultraviolet native fluorescence, Raman spectroscopy, laser-induced breakdown spectroscopy, reflectometry, and hyperspectral imaging Examines photodissociation followed by laser-induced fluorescence, photothermal methods, cavity-enhanced absorption spectrometry, and short-pulse laser-based techniques Describes the detection and recognition of explosives using terahertz-frequency spectroscopic techniques Each chapter is authored by a leading expert on the respective technology, and is structured to supply historical perspective, address current advantages and challenges, and discuss novel research and applications. Readers are left with an in-depth understanding and appreciation of each technology’s capabilities and potential for standoff hazard detection.

Download or read book An Investigation of Atmospheric Effects on Laser Propagation and the Impact on Eye Safety written by Walter F. Dabberdt and published by . This book was released on 1972 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are presented from an experimental study of laser beam scintillation along a slant path in the atmospheric planetary boundary layer. The primary objective of this research is to determine the influence on eye safety of atmospheric thermal turbulence in causing locally high intensities of energy in laser beams. This work has resulted in the further development of a general eye-hazard evaluation procedure based on atmospheric effects and laser operating conditions. The present work has also resulted in the development of a simple, 'worst-case' guide to estimate the maximum probability of eye damage.