Download or read book Performance of C W HF Chemical Laser with N2 Or He Diluent written by Donald J. Spencer and published by . This book was released on 1972 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent experimental results on the performance of a continuous HF (or DF) chemical laser are reported. In this device, an arc-heated diluent is mixed in a plenum with SF6 to provide F atoms. The mixture is expanded to form a supersonic jet into which H2 (or D2) is diffused. Population inversion and lasing are due to the reaction H2 + F = HF(v) + H. Power levels above 1 kW have been obtained in a N2 diluent gas flow, and levels above 1.7 kW have been obtained in a He diluent gas flow. Specific power yields are 43 kW sec/lb and 108 kW sec/lb for the N2 and He systems, respectively. The variation of laser power and efficiency with cavity optical axis location and SF mass flow are reported for both N2 and He systems. A spectrum of the HF laser operating in a He flow is also presented that gives evidence of v=3 partial inversion. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High power Lasers written by and published by . This book was released on 1996 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Power Lasers written by Guo jia zi ran ke xue ji jin wei yuan hui and published by SPIE-International Society for Optical Engineering. This book was released on 1996 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling CW DF and HF Laser Performance at Low Cavity Pressures and Diluent Conditions written by W. Rushmore and published by . This book was released on 1978 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: A laser performance model originally developed for high cavity pressure and diluent c.w. lasers is extended to apply to a significantly lower pressure and diluent operating regime. The different class of laser nozzle geometries used in low diluent applications are described and a method for theoretically modeling the internal flow area expansion which occurs in these designs is presented. Experimental data (closed cavity power, chemiluminescence, zero power gain) for helium diluent hydrogen fluoride and nitrogen diluent deuterium fluoride chemical lasers is used to assess the accuracy of the model. Agreement between theory and data is good for both the axisymmetric and two dimensional nozzle geometries examined. Test conditions where theory and data do not agree are shown to be in part related to the influence of shroud geometry and vacuum duct pressure on the flowfield.
Download or read book Handbook of Laser Technology and Applications Laser design and laser systems written by Colin E. Webb and published by CRC Press. This book was released on 2004 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Laser Technology and Applications written by Chunlei Guo and published by CRC Press. This book was released on 2021-06-24 with total page 1611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive handbook gives a fully updated guide to lasers and laser systems, including the complete range of their technical applications. The first volume outlines the fundamental components of lasers, their properties and working principles. The second volume gives exhaustive coverage of all major categories of lasers, from solid-state and semiconductor diode to fiber, waveguide, gas, chemical, and dye lasers. The third volume covers modern applications in engineering and technology, including all new and updated case studies spanning telecommunications and data storage to medicine, optical measurement, defense and security, nanomaterials processing and characterization.
Download or read book Impact of Aerospace Technology on Studies of the Earth s Atmosphere written by A.K. Oppenheim and published by Elsevier. This book was released on 2013-10-22 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impact of Aerospace Technology on Studies of the Earth's Atmosphere is a 13-chapter book that describes the studies that use space-based instruments to explore many qualities of the atmosphere. This text presents the studies about the Earth's magnetosphere, ionosphere, stratosphere, mesosphere, climate, and pollution. The International Magnetospheric Study is also covered. The use of fluorescent ion jets, lasers, space vehicles, and equipments on board Concorde 001 in this field of interest is explained as well. This book will be very useful as a base from which all nations can think out their own programs of equipment, measurement, and use in the study of Earth's atmosphere.
Download or read book Lasers and Masers written by and published by . This book was released on 1974 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: References and abstracts to international literature (mostly journal articles). Classified arrangement. Subject, author, and source indexes. Ser. 1, 1974: 8256 references.
Download or read book Handbook of Laser Technology and Applications written by Colin Webb and published by CRC Press. This book was released on 2020-09-29 with total page 1266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention of the laser was one of the towering achievements of the twentieth century. At the opening of the twenty-first century we are witnessing the burgeoning of the myriad technical innovations to which that invention has led. The Handbook of Laser Technology and Applications is a practical and long-lasting reference source for scientists and engineers who work with lasers. The Handbook provides, a comprehensive guide to the current status of lasers and laser systems; it is accessible to science or engineering graduates needing no more than standard undergraduate knowledge of optics. Whilst being a self-contained reference work, the Handbook provides extensive references to contemporary work, and is a basis for studying the professional journal literature on the subject. It covers applications through detailed case studies, and is therefore well suited to readers who wish to use it to solve specific problems of their own. The first of the three volumes comprises an introduction to the basic scientific principles of lasers, laser beams and non-linear optics. The second volume describes the mechanisms and operating characteristics of specific types of laser including crystalline solid - state lasers, semiconductor diode lasers, fibre lasers, gas lasers, chemical lasers, dye lasers and many others as well as detailing the optical and electronic components which tailor the laser's performance and beam delivery systems. The third volume is devoted to case studies of applications in a wide range of subjects including materials processing, optical measurement techniques, medicine, telecommunications, data storage, spectroscopy, earth sciences and astronomy, and plasma fusion research. This vast compendium of knowledge on laser science and technology is the work of over 130 international experts, many of whom are recognised as the world leaders in their respective fields. Whether the reader is engaged in the science, technology, industrial or medical applications of lasers or is researching the subject as a manager or investor in technical enterprises they cannot fail to be informed and enlightened by the wide range of information the Handbook supplies.
Download or read book Handbook of Laser Technology and Applications Three Volume Set written by Colin Webb and published by CRC Press. This book was released on 2003-12-01 with total page 2779 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention of the laser was one of the towering achievements of the twentieth century. At the opening of the twenty-first century we are witnessing the burgeoning of the myriad technical innovations to which that invention has led. The Handbook of Laser Technology and Applications is a practical and long-lasting reference source for scientists a
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1993 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International bibliography of periodical literature covering all fields of knowledge written by and published by . This book was released on 1973 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Applied Physics Applied Physics Letters written by Nichigai Asoshiētsu and published by . This book was released on 1974 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1972 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
