Download or read book Mutual Coherence Function of a Beam Propagating in a Turbulent Medium written by Ronald Louis Fante and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using transport theory the mutual coherence function of a beam propagating in a turbulent medium has been studied in detail, including the effect of the beam size, focal length and strength of the turbulence. The most detailed results are obtained for the MCF when the fluctuations have a Gaussian spectrum, but simple closed-form asymptotic results have also been obtained when the spectrum is a von Karman. (Author).
Download or read book Mutual Coherence Function and Frequency Spectrum of a Laser Beam Propagating Through Atmospheric Turbulence written by Ronald Louis Fante and published by . This book was released on 1974 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mutual coherence function of a laser beam propagating in turbulence with a modified von Karman spectrum for the index of refraction fluctuations, including a parametric study of the effect on the MCF of varying beam size, focal length, and the properties of the turbulence was computed. The results are valid over all propagation distances, unlike calculations employing the method of smooth perturbations. Also studied was the effect of a constant wind on the frequency spectrum of signal. It was found that over most practical path lengths the spectral width is delta omega = 4.1V ((k sub o)sup 6/5)(z sup 3/5)((C sub n, sub 2)sup 3/5), where V is the wind speed, k sub o is the signal wavenumber, C sub n sup 2 is the strength of turbulence, and z is the path length in the turbulence. (Modified author abstract).
Download or read book Optical Beam Propagation in Turbulent Media written by Ronald Louis Fante and published by . This book was released on 1975 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most recent developments on the propagation of microwave and optical beams in turbulent media, such as the clear atmosphere are discussed. Among the phenomena considered are beam spreading, beam wander, loss of coherence, scintillations, angle-of-arrival variations, and short pulse effects. Also included is a discussion of methods of compensation of the effect of turbulence on communications and imaging systems.
Download or read book Propagation in Turbulent Media written by Ronald Louis Fante and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report the author has reviewed the recent developments on beam propagation in a turbulent medium. These include the effect of the turbulence on beam intensity, spread, coherence, wander, angle of arrival, scintillation and distortion, as well as other related topics.
Download or read book Intensity Coherence and Frequency Spectrum of a Focussed Beam in a Random Medium written by Ronald Louis Fante and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical results have been obtained for the effect of the strength of turbulence on the intensity, mutual coherence function, and frequency spectrum of a focussed beam propagating in a random medium having a von Karman spectrum for the index of refraction fluctuations. The author has presented conditions for when the turbulence affects the nature of the beam and has demonstrated the validity of these conditions by comparison with the numerical results. (Author).
Download or read book Electromagnetic Wave Propagation Radiation and Scattering written by Akira Ishimaru and published by John Wiley & Sons. This book was released on 2017-10-27 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most methodical treatments of electromagnetic wave propagation, radiation, and scattering—including new applications and ideas Presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. It provides ample end-of-chapter problems and offers a 90-page solution manual to help readers check and comprehend their work. The second part of the book explores up-to-date applications of electromagnetic waves—including radiometry, geophysical remote sensing and imaging, and biomedical and signal processing applications. Written by a world renowned authority in the field of electromagnetic research, this new edition of Electromagnetic Wave Propagation, Radiation, and Scattering: From Fundamentals to Applications presents detailed applications with useful appendices, including mathematical formulas, Airy function, Abel’s equation, Hilbert transform, and Riemann surfaces. The book also features newly revised material that focuses on the following topics: Statistical wave theories—which have been extensively applied to topics such as geophysical remote sensing, bio-electromagnetics, bio-optics, and bio-ultrasound imaging Integration of several distinct yet related disciplines, such as statistical wave theories, communications, signal processing, and time reversal imaging New phenomena of multiple scattering, such as coherent scattering and memory effects Multiphysics applications that combine theories for different physical phenomena, such as seismic coda waves, stochastic wave theory, heat diffusion, and temperature rise in biological and other media Metamaterials and solitons in optical fibers, nonlinear phenomena, and porous media Primarily a textbook for graduate courses in electrical engineering, Electromagnetic Wave Propagation, Radiation, and Scattering is also ideal for graduate students in bioengineering, geophysics, ocean engineering, and geophysical remote sensing. The book is also a useful reference for engineers and scientists working in fields such as geophysical remote sensing, bio–medical engineering in optics and ultrasound, and new materials and integration with signal processing.
Download or read book Handbook of Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on with total page 1881 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 1982 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Introduction to Applied Optics for Engineers written by F. Paul Carlson and published by Elsevier. This book was released on 2012-12-02 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Applied Optics for Engineers introduces the reader to applied optics and presents ideas on coherent optical data processing. Topics covered include applications and approximations for radiation fields; physical realizations of phase transformers, lenses, and systems; applications of optical filtering to data processing; and partial coherence. Several examples from bioengineering-related research are provided. This book is comprised of 10 chapters and begins with an introduction to the basic equations of physical optics that are derived using the wave treatment approach, resulting in the simpler geometrical (ray) optics approximation. The differential form of Maxwell's equations is considered, along with propagation in free space and Fermat's principle. The following chapters explore applications and approximations for radiation fields, with emphasis on Fraunhofer fields, circular and multiple apertures, and phase effects in apertures; physical realizations of phase transformers, lenses, and spherical and parabolic surfaces; and system transform concepts including Fourier transform representation of fields and calculation techniques for imaging through a lens. The remaining chapters focus on interface devices, interferometry, holography, and scattering. This monograph is intended for students and engineers with a traditional background in electromagnetic wave theory.
Download or read book Journal of the Optical Society of America written by and published by . This book was released on 2006 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Partially Coherent Optical Transmission Theory in Optical Wireless Communication written by Xizheng Ke and published by Springer Nature. This book was released on with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Optics Third Edition Volume V Atmospheric Optics Modulators Fiber Optics X Ray and Neutron Optics written by Michael Bass and published by McGraw Hill Professional. This book was released on 2009-11-13 with total page 1293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and up-to-date optics resource available Prepared under the auspices of the Optical Society of America, the five carefully architected and cross-referenced volumes of the Handbook of Optics, Third Edition, contain everything a student, scientist, or engineer requires to actively work in the field. From the design of complex optical systems to world-class research and development methods, this definitive publication provides unparalleled access to the fundamentals of the discipline and its greatest minds. Individual chapters are written by the world's most renowned experts who explain, illustrate, and solve the entire field of optics. Each volume contains a complete chapter listing for the entire Handbook, extensive chapter glossaries, and a wealth of references. This pioneering work offers unprecedented coverage of optics data, techniques, and applications. Volume V covers atmospheric optics, modulators, fiber optics, and x-ray and neutron optics.
Download or read book NASA Technical Paper written by and published by . This book was released on 1978 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustics in Moving Inhomogeneous Media written by Vladimir E. Ostashev and published by CRC Press. This book was released on 2015-09-18 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces Systematic Formulations for Use in Acoustic ApplicationsAcoustics in Moving Inhomogeneous Media, Second Edition offers a uniquely complete and rigorous study of sound propagation and scattering in moving media with deterministic and random inhomogeneities. This study is of great importance in many fields including atmospheric and oceanic
Download or read book Government Reports Announcements written by and published by . This book was released on 1974 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Optics Third Edition 5 Volume Set written by Optical Society of America and published by McGraw Hill Professional. This book was released on 2010-05-18 with total page 6122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and up-to-date optics resource available Prepared under the auspices of the Optical Society of America, the five carefully architected and cross-referenced volumes of the Handbook of Optics, Third Edition, contain everything a student, scientist, or engineer requires to actively work in the field. From the design of complex optical systems to world-class research and development methods, this definitive publication provides unparalleled access to the fundamentals of the discipline and its greatest minds. Individual chapters are written by the world's most renowned experts who explain, illustrate, and solve the entire field of optics. Each volume contains a complete chapter listing for the entire Handbook, extensive chapter glossaries, and a wealth of references. This pioneering work offers unprecedented coverage of optics data, techniques, and applications. Volume I covers geometrical and physical optics, polarized light, components, and instruments. Volume II covers design, fabrications, testing, sources, detectors, radiometry, and photometry. Volume III, all in full color, covers vision and vision optics. Volume IV covers optical properties of materials, nonlinear optics, and quantum optics. Volume V covers atmospheric optics, modulators, fiber optics, and x-ray and neutron optics. Visit www.HandbookofOpticsOnline.com to search all five volumes and download a comprehensive index.
Download or read book Journal of the Optical Society of America written by Optical Society of America and published by . This book was released on 1981 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
