Download or read book The Status of Rotational Nonequilibrium in HF Chemical Lasers written by and published by . This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rotational Nonequilibrium Influences in CW HF DF Chemical Lasers written by S. W. Zelazny and published by . This book was released on 1981 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory is presented which considers either rotational equilibrium or nonequilibrium rate processes in continuous wave (CW) hydrogen fluoride (HF) or deuterium fluoride (DF) lasers. The theory is used to predict zero power gain and power spectral distributions and comparisons are made with experimental observations. The DF reaction kinetics model was found to give predictions of zero power gain which were closely correlated with experimental data. However, the HF reaction kinetics were found to produce radically different zero power gains than experimentally observed. Modifications to the reaction rages of certain vibrational-translational and vibrational-vibrational energy exchange processes were found to remove the discrepancy between the measured and predicted zero power gains. The rotational nonequilibrium theory was used to predict the power spectral distributions for HF and DF lasers and results were found to be consistent with experimental data.

Download or read book A Theoretical Investigation of Rotational Nonequilibrium Phenomena in the Pulsed Hydrogen Fluoride Laser System written by Keith Emery and published by . This book was released on 1979 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Theoretical Assessment of Vibrational to Rotational Energy Exchange in the Hydrogen Fluoride Chemical Laser written by Robert Clinton Brown and published by . This book was released on 1980 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Presence of Rotational Non equilibrium in a Supersonic HF Laser written by Gerald C. Manke and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Theoretical and Experimental Investigation of the Mechanisms of the Hydrogen fluoride Pulsed Chemical Laser written by Joseph J. T. Hough and published by . This book was released on 1975 with total page 300 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 1993 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calculation of Rotational Nonequilibrium in a Pulsed Hf Laser written by 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 A Collection of Technical Papers written by and published by . This book was released on 1983 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lasers in Fluid Mechanics and Plasmadynamics written by Charles P. Wang and published by . This book was released on 1983 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Translational and Rotational Nonequilibrium on Continuous Wave Chemical Laser Performance written by Harold Mirels and published by . This book was released on 1988 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A previous model used to describe continuous wave (cw) chemical laser performance is generalized to include rotational as well as translational nonequilibrium. The resultant equations are simplified by the realistic assumption that translational and rotational relaxation rates are fast compared with convection, chemical pumping, and collisional deactivation rates. As a consequence, translational and rotational relaxation rates are in equilibrium with stimulated emission. The resultant system of equations is independent of rotational relaxation. An amplifier solution is presented that predicts saturation effects in accord with experiments. Fabry-Perot oscillator solutions are also presented for a multiline saturated laser and for a partly saturated single-lien laser. The present results provide a base for simplification of numerical codes. It is concluded that a resonable first estimate for cw chemical laser performance can be obtained by assuming rotational equilibrium and translational nonequilibrium. Keywords: Chemical laser model, Chemical lasers; Continuous wave.

Download or read book Efficient Model for HF Lasers with Rotational Nonequilibrium written by Joseph J. T. Hough and published by . This book was released on 1978 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for modeling rotational nonequilibrium in HF(DF) laser systems that significantly reduces the computation time required for such calculations is described. With this formulation, an approximation can be obtained of the nonequilibrium optical gains of the individual v, J transitions without computing the individual populations for each v, J state, which appreciably reduces the number of integration variables. The predictions of a pulsed H2-F2 laser model utilizing this approach are very similar to the predictions of a more complex model. The computational economy gained makes feasible parametric studies to improve understanding of the importance of rotational relaxation in laser calculations. (Author).

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 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 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 Hydrogen Fluoride Rotational Lasers written by Eric Randall Sirkin and published by . This book was released on 1980 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shock Tubes and Waves written by Charles E. Treanor and published by SUNY Press. This book was released on 1982-01-01 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings from a symposium on shock tubes and waves held July 6-9, 1981.