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Systems For Study Of Propagation Of Co2 Laser Radiations Through Clouds
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Book Synopsis Systems for Study of Propagation of CO2 Laser Radiations Through Clouds by : P. F. Browne
Download or read book Systems for Study of Propagation of CO2 Laser Radiations Through Clouds written by P. F. Browne and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the design, and progress toward the construction, of systems required for the study of the propagation of 10.6 micrometers radiation from CO2 lasers (both high power pulsed and cw) through clouds, both laboratory generated and natural. The laboratory experiments of highest priority are the study of non-linear attenuation of high power TEA laser pulses (of order 10 J/sq. cm.) through optically thick clouds produced by adiabatic expansion with particular attention to change of pulse shape, and measurements of backscatter. The systems required for these experiments are nearing completion. The field experiments are the study of attenuation, beam quality and backscatter of TEA laser pulses and cw radiation over a return path of the order of 1 km. The systems required are under construction. All lasers and also the transmissometer have been developed within the group. (Author).
Book Synopsis Propagation of Intensive Laser Radiation in Clouds by : O. A. Volkovit︠s︡kiĭ
Download or read book Propagation of Intensive Laser Radiation in Clouds written by O. A. Volkovit︠s︡kiĭ and published by AIAA. This book was released on 1992 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This text deals with the interaction between intensive laser radiation and clouds and will be helpful in implementing specific laser systems operating in the real atmosphere. The fundamentals of nonlinear statistical optics of aerodisperse media are addressed for the first time in this volume. Scientists and engineers interested in the problems of laser radiation propagation in the atmosphere, as well as postgraduates and senior students specializing in nonlinear optics, laser physics, and quantum electronics, will find the expert research contained within these pages valuable.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Propagation of Intensive Laser Radiation in Clouds by :
Download or read book Propagation of Intensive Laser Radiation in Clouds written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-Power Laser Radiation in Atmospheric Aerosols by : V.E. Zuev
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.
Book Synopsis Propagation of High Energy Pulses of 10.6 Micrometer Radiation Through the Atmosphere by : P. F. Browne
Download or read book Propagation of High Energy Pulses of 10.6 Micrometer Radiation Through the Atmosphere written by P. F. Browne and published by . This book was released on 1973 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report contains a detailed theoretical discussion of the effect of CO2 laser (10.6 micrometer wavelength) energy on fog droplets, and the subsequent effects on the optical propagation path of the laser beam. Changes in refraction index in the beam cross section are considered. Plans for construction of a fog generation chamber for water fogs of controlled characteristics suitable for CO2 laser experimentation are given. Work on the development of CO2 TEA2 laser and triggering systems and progress on a 50 W CW diffusion cooled CO2 laser is discussed. Planned experiments, using the laser under development, for study of the interaction of such beams with laboratory controlled fogs are described. (Author).
Book Synopsis Atmospheric Transmittance, 7-30 Micrometers by : R. A. McClatchey
Download or read book Atmospheric Transmittance, 7-30 Micrometers written by R. A. McClatchey and published by . This book was released on 1972 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: High resolution transmittance curves are presented for the spectral region 320-1400 wave numbers. These spectra are useful as a guide for selecting laser wavelengths for atmospheric propagation studies in this spectral region. In addition, this report provides specific information concerning the attenuation coefficients of 41 CO2 rotational laser lines in the 10.4 micrometer band system (v3 to v1). Charts for predicting the atmospheric attenuation of the CO2 laser lines are provided for each of five climatological model atmospheres and two haze models. The current report extends the work presented in two earlier reports on (1) CO laser attenuation in the 1400-2120/cm−1 (4.72-7. 14 micrometers) region: AFCRL-71-0370 and (2) HF and DF laser attenuation in the 2120-3740/cm (2.67-4.72 micrometers) region: AFCRL-72-0312. This report, when combined with the two previous reports described above, provides synthetic spectra for the entire region from 2.67-31.25 micrometers.
Book Synopsis Propagation of high power pulses of 10.6 micrometers radiation from a CO2 tea laser of novel design through clouds produced by adiabatic expansion in the laboratory by : P. F. Browne
Download or read book Propagation of high power pulses of 10.6 micrometers radiation from a CO2 tea laser of novel design through clouds produced by adiabatic expansion in the laboratory written by P. F. Browne and published by . This book was released on 1976 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes (1) theory, design and performance of a CO2 TEA laser with VUV preionization delivering typically 25J pulses of duration 0.1 microsecond and beam cross section 20 per sq cm; (2) the production of clouds in the laboratory by adiabatic expansion of compressed gas in a 300 1 glass chamber and the measurement of the cloud parameters (liquid water content, drop radius); (3) measurements of attenuation by such clouds of TEA laser pulses of the above type and also measurement of partial cloud clearing by a CW 10.6 micrometer beam (by recording the change in attenuation of a collinear He-Ne beam); and (4) the theory required to understand the interaction between 10.6 micrometers radiation and clouds of droplets. (Author).
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1979-04 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Non-Linear Propagation and Chirping of CO2 Lasers by : David C. Smith
Download or read book Investigation of Non-Linear Propagation and Chirping of CO2 Lasers written by David C. Smith and published by . This book was released on 1969 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research is summarized on non-linear propagation of CO2 laser radiation (10.6 micrometer wavelength) in absorbing and amplifying media, the generation and propagation of mode locked CO2 laser radiation, and the chirping or frequency sweeping of CO2 laser pulses.
Book Synopsis Toxicology Research Projects Directory by :
Download or read book Toxicology Research Projects Directory written by and published by . This book was released on 1980-04 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1989-07 with total page 1314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CO2 Lasers Effects and Applications by : W Duley
Download or read book CO2 Lasers Effects and Applications written by W Duley and published by Elsevier. This book was released on 2012-12-02 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 Lasers: Effects and Applications examines and summarizes the important applications of the device in different areas of study like physics, chemistry, and engineering. In some parts of the book, the reader is assumed to be knowledgeable in university level mathematics or some specialized area in physics or chemistry. The book consists of 10 chapters where the first two establish the general concepts on lasers and CO2 lasers, respectively. Chapter 3 takes the reader further and presents a comprehensive review of optical components for use such as detectors, windows, and mirrors. Because the CO2 laser is mostly used as a heat source, the theory of laser-surface heating is relevant in the discussion. This theory is presented in Chapter 4. Chapters 5 and 6 meanwhile present a summary of observations on cutting, welding, and some related topics. The following chapters discuss the different applications of CO2 lasers in different areas and processes. Some of these applications include in the generation of thermal effect, laser deposition of thin films, spectroscopy, laser photochemistry, and meteorology and communication systems. The text is a good source of reference to both students and scientists in the areas of physics, chemistry, and engineering.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Self-Induced Thermal Effects of CO2 Laser Radiation Propagating in Absorbing Gases by :
Download or read book Investigation of Self-Induced Thermal Effects of CO2 Laser Radiation Propagating in Absorbing Gases written by and published by . This book was released on 1972 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes the work performed during the second year of an experimental and theoretical research program concerning the self-induced thermal distortion effects on cw CO2 laser radiation propagating in absorbing media. The research program is directed toward improving the understanding of the possible limitations imposed by the atmosphere on the propagation of high power laser radiation. The work presented is concerned with essentially the following three different areas: (1) wind simulation experiments using a high pressure gas cell; (2) studies of the kinetic cooling of a gas by absorbing of CO2 laser radiation; and (3) studies of turbulence effects on the self-induced thermal distortion of laser beams.
