Propagation of High-energy Laser Beams Through the Earth's Atmosphere II
Author: Peter B. Ulrich
Publisher:
Published: 1991
Total Pages: 232
ISBN-13:
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Author: Peter B. Ulrich
Publisher:
Published: 1991
Total Pages: 232
ISBN-13:
DOWNLOAD EBOOKAuthor: Hugo Weichel
Publisher: SPIE Press
Published: 1990
Total Pages: 114
ISBN-13: 9780819404879
DOWNLOAD EBOOKAuthor: T. Stewart McKechnie
Publisher: Springer Nature
Published: 2022-10-06
Total Pages: 694
ISBN-13: 3030988287
DOWNLOAD EBOOKThis 2nd edition lays out an updated version of the general theory of light propagation and imaging through Earth’s turbulent atmosphere initially developed in the late ‘70s and ‘80s, with additional applications in the areas of laser communications and high-energy laser beam propagation. New material includes a chapter providing a comprehensive mathematical tool set for precisely characterizing image formation with the anticipated Extremely Large Telescopes (ELTS), enabling a staggering range of star image shapes and sizes; existing chapters rewritten or modified so as to supplement the mathematics with clearer physical insight through written and graphical means; a history of the development of present-day understanding of light propagation and imaging through the atmosphere as represented by the general theory described. Beginning with the rudimentary, geometrical-optics based understanding of a century ago, it describes advances made in the 1960s, including the development of the ‘Kolmogorov theory,’ the deficiencies of which undermined its credibility, but not before it had done enormous damage, such as construction of a generation of underperforming ‘light bucket’ telescopes. The general theory requires no a priori turbulence assumptions. Instead, it provides means for calculating the turbulence properties directly from readily-measurable properties of star images.
Author: Yuri A. Rezunkov
Publisher: Springer Nature
Published: 2021-08-25
Total Pages: 307
ISBN-13: 3030796930
DOWNLOAD EBOOKThis book gives an in-depth analysis of the physical phenomena of thrust production by laser radiation, as well as laser propulsion engines, and laser-propelled vehicles. It brings together into a unified context accumulated up-to-date information on laser propulsion research, considering propulsion phenomena, laser propulsion techniques, design of vehicles with laser propulsion engines, and high-power laser systems to provide movement for space vehicles. In particular, the reader will find detailed coverage of: designs of laser propulsion engines, operating as both air-breathing and ramjet engines to launch vehicles into LEOs; Assembly of vehicles whereby laser power from a remote laser is collected and directed into a propulsion engine; and, the laser-adaptive systems that control a laser beam to propel vehicles into orbits by delivering laser power through the Earth's atmosphere. This book is essential reading for researchers and professionals involved in laser propulsion.
Author:
Publisher:
Published: 1999
Total Pages: 300
ISBN-13:
DOWNLOAD EBOOKAuthor: Kyungsik Kang
Publisher: World Scientific
Published: 1991-06-05
Total Pages: 414
ISBN-13: 981456933X
DOWNLOAD EBOOKThese proceedings are the culmination of the First Yanbian Workshop on Modern Physics, an epoch making event in Korean history that took place in Yanbian, China during 15-18 July, 1990. The meeting was instrumental to bring the active practitioners in the frontier physic together from many parts of the world including for the first time, those from North Korea. This volume contains the most important lectures by experts in Particle Physics, Conformal Field Theory, High-Tc Superconductivity, Phase Transitions, Medium Energy Physics, Astrophysics and Cosmology.
Author:
Publisher:
Published:
Total Pages: 994
ISBN-13:
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Publisher:
Published: 1995
Total Pages: 538
ISBN-13:
DOWNLOAD EBOOKAuthor: Torben Andersen
Publisher: Springer Science & Business Media
Published: 2011-06-23
Total Pages: 555
ISBN-13: 1461401496
DOWNLOAD EBOOKGround- or space-based telescopes are becoming increasingly more complex and construction budgets are typically in the billion dollar range. Facing costs of this magnitude, availability of engineering tools for prediction of performance and design optimization is imperative. Establishment of simulation models combining different technical disciplines such as Structural Dynamics, Control Engineering, Optics and Thermal Engineering is indispensable. Such models are normally called Integrated Models because they involve many different disciplines. The models will play an increasingly larger role for design of future interdisciplinary optical systems in space or on ground. The book concentrates on integrated modeling of optical and radio telescopes but the techniques presented will be applicable to a large variety of systems. Hence, the book will be of interest to optical and radio telescope designers, designers of spacecrafts that include optical systems, and to designers of various complex defense systems. The book may also find use as a textbook for undergraduate and graduate courses within the field. "Adaptive Optics" is an exciting and relatively new field, originally dedicated to correction for blurring when imaging through the atmosphere. Although this objective is still of high importance, the concept of Adaptive Optics has recently evolved further. Today, the objective is not only to correct for atmospheric turbulence effects but also for a range of static and dynamical telescope aberrations. The notion of adaptive optics has expanded to the field of "Wavefront Control", correcting for a variety of system aberrations. Wavefront control systems maintain form and position of optical elements with high precision under static and dynamical load. In many ways, such systems replace the steel structures of traditional optical systems, thereby providing much lighter systems with a performance not possible before. Integrated Modeling is the foremost tool for studies of Wavefront Control for telescopes and complex optics and is therefore now of high importance. Springer has recently published two books on telescopes, "Reflecting Telescope Optics" by R. Wilson, and "The Design and Construction of Large Optical Telescopes" by P. Bely. Noting that a new (and expensive) generation of Extremely Large Telescopes with apertures in the 30-100 m range is on the way, the present book on integrated modeling is a good match to the existing books and an appropriate specialization and continuation of some subjects dealt with in those books.