Download or read book Atmospheric Transmission of Laser Radiation written by R. A. McClatchey and published by . This book was released on 1978 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Transmission of Laser Radiation Computer Code LASER written by and published by . This book was released on 1978 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer code called LASER has been developed and documented and will be made available to interested users. LASER is a version of HITRAN which computes the monochromatic extinction coefficients for both molecular and particulate components of the atmosphere and provides results for a series of atmospheric models from sea level to 100 km in altitude. A detailed description of the calculations leading to these extinction coefficient charts is provided, and charts are provided for a number of specific laser frequencies in order to bring up to date previously published results. In addition, high spectral resolution atmospheric transmission spectra have been provided covering the regions of CO2, CO, and DF laser emission. These plotted spectra represent an up-to-date version of previously published material.
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 A Literature Survey on the Atmospheric Effects on the Propagation of 1 06 Micron Laser Radiation written by Eddie L. Roy and published by . This book was released on 1965 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Propagation of Injection Laser Radiation for High Data Rate Transmission written by Ernst J. Schiel and published by . This book was released on 1968 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emphasis in this program was the development of a high data rate system for use in transmission through the atmosphere. This system was designed to have a large signal-to-noise ratio for distances up to 20 km and can, therefore, tolerate large insertion losses due to unfavorable weather conditions. This system has a maximum capacity of 10 megabits/sec and either PFM, PPM, or PCM can be used. With presently available military PCM equipment, simultaneous transmission of 196 audio channels is feasible. Specifically presented in this paper are: the design and construction of the transmitter and receiver, signal-to-noise considerations, and operational characteristics of the system. An experimental injection laser communication link was set up over a 13 km range. The transmitter was located at Fort Monmouth, N.J. The path of the laser beam traversed various terrain including a wide river, parking lots, woods and suburban areas. The average height of the laser beam above the ground was approximately 25 meters and its path across the water was approximately 1 km. (Author).
Download or read book Atmospheric Transmission of CO2 Laser Radiation with Application to Laser Doppler Systems written by S. S. R. Murty and published by . This book was released on 1975 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The molecular absorption coefficients of carbon dioxide, water vapor, and nitrous oxide are calculated at the P16, P20, P22, and P24 lines of the CO2 laser for temperatures from 200 to 300 K and for pressures from 100 to 1100 mb. The temperature variation of the continuum absorption coefficient of water vapor is taken into account semi-empirically from Burch's data. The total absorption coefficient from the present calculations falls within +/- 20 percent of the results of McClatchey and Selby. The transmission loss which the MSFC CO2 pulsed laser Doppler system experiences has been calculated for the January 1973 flight-test conditions for the five P-lines. The total transmission loss is approximately 7 percent higher at the P16 line and 10 percent lower at the P24 line compared to the P20 line. Comparison of the CO2 laser with HF and DF laser transmission reveals the P2(8) line at 3.8 [mu]m of the DF laser is much better from the transmission point of view for altitudes below 10 km.
Download or read book Atmospheric Transmission of 1 06 Micron Laser Radiation Application to Standoff Missile Performance written by and published by . This book was released on 1974 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model for the prediction of maximum target lock-on range for a 1.06 micron laser target designator weapon system where atmospheric attenuation of the laser radiation is the limiting system factor is derived. The laser range equation is based on the assumption of specific designator/receiver design characteristics, the assumption that the target is a Lambert surface, and the assumption of the validity of the Beer-Lambert Law for describing atmospheric propagation of laser radiation.
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 Laser Beams in the Atmosphere written by V. E. Zuev and published by Springer. This book was released on 2014-09-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although scarcely 20 years have passed since the creation of the first laser, laser engineering has enjoyed a variety of applications in science and in practice. Among these applications, a special pI ace is held by those related to the propagation of laser radiation in the atmosphere. Some, such as laser communication and information-transmission systems, locating and teleme tering systems, and mapping and navigation systems, require access to quantitative data on the effects of the atmosphere on the parameters of the laser beam serving as the carrier of useful information, since the efficacy of any such system depends significantly on the influence of the atmosphere. Another set of laser applications associated with the propagation of coherent radiation in the atmosphere requires the solution of both direct and inverse problems related to this complex subject. The kind of applica tion in question is the use of lasers for long-range monitoring of various physical parameters of the atmosphere-a new and highly promising direc tion in science and engineering.
Download or read book Atmospheric Transmission of 1 06 Micron Laser Radiation written by Charles Henry Coolidge (CAPT, USAF., Jr) and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Transmission Handbook written by William I. Thompson and published by . This book was released on 1971 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Bericht f r das Jahr 1994 zum Verwaltungsbericht des Regierungsrates zum Bericht des Appellationsgerichtes zum Bericht des Ombudsman und ber besondere Wahrnehmungen written by and published by . This book was released on 1995 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety with Lasers and Other Optical Sources written by D. H. Sliney and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly a decade aga a general review article on the evaluation of optical radia tion hazards was published in Applied Optics (Sliney and Freasier, 1973). This arti cle received many favorable comments but also prompted many inquiries regarding specific optical hazard problems. From this it became evident that a monograph rather than a supplemental and expanded article was needed to fill this literature gap relating to laser and optical radiation hazards. The present work is designed to fill that gap, and is structured to permit either classroom or self-study use. Much of the material in this book was developed in eonnection with short courses on laser safety and radiometry in which we have participated, as weIl as from our previous articles. In particular, the sequenee of chapters is based upon the experiences which we have had in lecturing in courses with different schedules. One of the great difficulties in developing a text of this nature is that a broad, multidisciplinary background must be included in order that the reader can comprehend all of the subjeet matter readily. For this reason, the material presented on anatomy and physiology is orien ted toward the engineer or physical scientist, while the review material on basic optical physics is intended more for the physician or life scientist.
Download or read book Laser Monitoring of the Atmosphere written by Everett D. Hinkley and published by Springer. This book was released on 1976 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Conference on Atmospheric Limitations to Optical Propagation written by and published by . This book was released on 1965 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extinction of DF Laser Radiation Derived from Outdoor Atmospheric Measurements written by James W. Cusack and published by . This book was released on 1976 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advancements in the development of the DF (Deuterium Flouride) laser as a high power device have prompted interest in better defining atmospheric propagation constants for the region of the infrared spectrum in which it emits, 3.5 to 4.0 microns. Existing low resolution spectroscopic studies of these wavelengths indicate that it is a 'window' region and has reasonably better transmission characteristics than most of the infrared. This report covers outdoor field measurements of the atmospheric transmission of four dominant DF laser lines. The measurements were performed at the Advanced Optical Test Facility located at the Verona Test Annex of the Rome Air Development Center. The measurements were made with a pulsed DF laser which was used to transmit across a propagation path of 2000 feet in length. Results are reported here for the 2-1 P(8), 2-1 P(9), 3-2 P(8) and the 2-1 P(6) DF lines. The experimental results are analyzed and compared with the latest in-laboratory measurements. Results indicate that in high humidity environments the differences between laboratory and field measurements become increasingly larger. (Author).
