Scattered Schneiders

Author : Stefan Preußler
Publisher : Cuvillier Verlag
Page : 176 pages
File Size : 45,8 Mb
Release : 2016-10-12
Category : Technology & Engineering
ISBN : 9783736983663

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Bandwidth Reduction of Stimulated Brillouin Scattering and Applications in Optical Communication by Stefan Preußler Pdf

Stimulated Brillouin scattering is the most dominant nonlinear effect in single mode optical fibers. Its unique spectral characteristics, especially the narrow bandwidth of 20 – 30 MHz enable numerous applications, including optical spectrum analysis, delay and storage of light, distributed sensing and optical signal processing. Most of them would benefit from a reduction of the Brillouin gain bandwidth. This dissertation demonstrates several methods for significant reduction of the Brillouin gain bandwidth, including a multi-stage system, the superposition of the gain with two losses as well as the utilization of a frequency domain aperture. Thereby the Brillouin gain bandwidth can be reduced significantly down to 3 MHz, which equals 15% of the normal bandwidth. Furthermore, the reduced Brillouin gain bandwidth is employed for various applications. First, the resolution and the dynamic range of a Brillouin based optical spectrum analyzer are enhanced significantly. Second, a new technique for the storage of optical data packets, called Quasi-Light-Storage, is introduced and the maximum storage time is increased to 160 ns for 8 bit data packets. Finally, Brillouin scattering is used for the processing of optical frequency combs, leading to the generation high quality of mm- and THz-waves, as well as almost ideal sinc-shaped Nyquist pulse sequences.

Author : Rut Rapaporṭ
Publisher : Unknown
Page : 0 pages
File Size : 50,9 Mb
Release : 2022
Category : Jewish families
ISBN : 1600919502

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Scattered Schneiders by Rut Rapaporṭ Pdf

Author : D R Flower
Publisher : World Scientific
Page : 186 pages
File Size : 42,6 Mb
Release : 1992-10-28
Category : Electronic
ISBN : 9789814554831

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Atomic Scattering - A Meeting In Honour Of Prof B H Bransden by D R Flower Pdf

The retirement of Professor Brian Bransden was marked by a meeting on 'Atomic Scattering'. A distinguished group of speakers reviewed electron and positron scattering, as well as ion-atom collisions. The proceedings provide a timely survey of these important areas and will be valued by postgraduate students and research workers alike.

Author : Winfried Schuelke
Publisher : OUP Oxford
Page : 608 pages
File Size : 49,9 Mb
Release : 2007-06-21
Category : Science
ISBN : 9780191523281

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Electron Dynamics by Inelastic X-Ray Scattering by Winfried Schuelke Pdf

Knowledge of the dynamics of many-electron systems is of fundamental importance to all disciplines of condensed matter physics. A very effective access to electron dynamics is offered by inelastic X-ray scattering (IXS) spectroscopy. The double differential scattering cross section for IXS is directly related to the time-dependent two-particle density correlation function, and, for large momentum and energy transfer (Compton limit) to the electron momentum distribution. Moreover, resonant inelastic X-ray scattering (RIXS) enables the study of electron dynamics via electronic excitations in a very selective manner (e.g. selectively spin, crystal momentum, or symmetry), so that other methods are efficaciously complemented. The progress of IXS spectroscopy is intimately related to the growing range of applications of synchrotron radiation. The aim of the book is to provide the growing community of researchers with accounts of experimental methods, instrumentation, and data analysis of IXS, with representative examples of successful applications, and with the theoretical framework for interpretations of the measurements.

Author : Anonim
Publisher : Unknown
Page : 754 pages
File Size : 48,5 Mb
Release : 1957
Category : Nuclear energy
ISBN : NWU:35556015762305

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Nuclear Science Abstracts by Anonim Pdf

Author : Isao Shimamura,Kazuo Takayanagi
Publisher : Springer Science & Business Media
Page : 578 pages
File Size : 54,6 Mb
Release : 2013-11-11
Category : Science
ISBN : 9781461323570

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Electron-Molecule Collisions by Isao Shimamura,Kazuo Takayanagi Pdf

Scattering phenomena play an important role in modern physics. Many significant discoveries have been made through collision experiments. Amongst diverse kinds of collision systems, this book sheds light on the collision of an electron with a molecule. The electron-molecule collision provides a basic scattering problem. It is scattering by a nonspherical, multicentered composite particle with its centers having degrees of freedom of motion. The molecule can even disintegrate, Le., dissociate or ionize into fragments, some or all of which may also be molecules. Although it is a difficult problem, the recent theoretical, experimental, and computational progress has been so significant as to warrant publication of a book that specializes in this field. The progress owes partly to technical develop ments in measurements and computations. No less important has been the great and continuing stimulus from such fields of application as astrophysics, the physics of the earth's upper atmosphere, laser physics, radiation physics, the physics of gas discharges, magnetohydrodynamic power generation, and so on. This book aims at introducing the reader to the problem of electron molecule collisions, elucidating the physics behind the phenomena, and review ing, to some extent, up-to-date important results. This book should be appropri ate for graduate reading in physics and chemistry. We also believe that investi gators in atomic and molecular physics will benefit much from this book.

Author : Philip G. Burke,Charles J. Joachain
Publisher : Springer Science & Business Media
Page : 280 pages
File Size : 54,6 Mb
Release : 1995-04-30
Category : Science
ISBN : 0306445468

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Theory of Electron-Atom Collisions: Part One: Potential Scattering by Philip G. Burke,Charles J. Joachain Pdf

The authors aim to hone the theory of electron-atom and electron-ion collisions by developing mathematical equations and comparing their results to the wealth of recent experimental data. This first of three parts focuses on potential scattering, and will serve as an introduction to many of the concepts covered in Parts II and III. As these processes occur in so many of the physical sciences, researchers in astrophysics, atmospheric physics, plasma physics, and laser physics will all benefit from the monograph.

Author : Bernd Schultrich
Publisher : Springer
Page : 752 pages
File Size : 52,6 Mb
Release : 2018-03-10
Category : Technology & Engineering
ISBN : 9783662559277

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Tetrahedrally Bonded Amorphous Carbon Films I by Bernd Schultrich Pdf

This book presents the status quo of the structure, preparation, properties and applications of tetrahedrally bonded amorphous carbon (ta-C) films and compares them with related film systems. Tetrahedrally bonded amorphous carbon films (ta-C) combine some of the outstanding properties of diamond with the versatility of amorphous materials. The book compares experimental results with the predictions of theoretical analyses, condensing them to practicable rules. It is strictly application oriented, emphasizing the exceptional potential of ta-C for tribological coatings of tools and components.

Author : Colm T. Whelan,Nigel J. Mason
Publisher : Springer Science & Business Media
Page : 342 pages
File Size : 41,9 Mb
Release : 2006-01-17
Category : Science
ISBN : 9780387275673

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Electron Scattering by Colm T. Whelan,Nigel J. Mason Pdf

There is a unity to physics; it is a discipline which provides the most fundamental understanding of the dynamics of matter and energy. To understand anything about a physical system you have to interact with it and one of the best ways to learn something is to use electrons as probes. This book is the result of a meeting, which took place in Magdalene College Cambridge in December 2001. Atomic, nuclear, cluster, soHd state, chemical and even bio- physicists got together to consider scattering electrons to explore matter in all its forms. Theory and experiment were represented in about equal measure. It was meeting marked by the most lively of discussions and the free exchange of ideas. We all learnt a lot. The Editors are grateful to EPSRC through its Collaborative Computational Project program (CCP2), lOPP, the Division of Atomic, Molecular, Optical and Plasma Physics (DAMOPP) and the Atomic Molecular Interactions group (AMIG) of the Institute of Physics for financial support. The smooth running of the meeting was enormously facilitated by the efficiency and helpfulness of the staff of Magdalene College, for which we are extremely grateful. This meeting marked the end for one of us (CTW) of a ten-year period as a fellow of the College and he would like to take this opportunity to thank the fellows and staff for the privilege of working with them.

Author : Malcolm Cooper,Peter Mijnarends,Nobuhiro Shiotani,Nobuhiko Sakai,Arun Bansil
Publisher : OUP Oxford
Page : 392 pages
File Size : 47,9 Mb
Release : 2004-10-14
Category : Science
ISBN : 9780191523038

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X-Ray Compton Scattering by Malcolm Cooper,Peter Mijnarends,Nobuhiro Shiotani,Nobuhiko Sakai,Arun Bansil Pdf

With the development of potent x-ray sources at many synchrotron laboratories worldwide, Compton scattering has become a standard tool for studying electron densities in materials. This book provides condensed matter and materials physicists with an authoritative, up-to-date, and very accessible account of the Compton scattering method, leading to a fundamental understanding of the electrical and magnetic properties of solid materials. The spectrum of Compton scattered x-rays is particularly sensitive to this behaviour and thus can be used as a direct probe and to test the predictions of theory. The current generation of synchrotron facilities allows this method to be readily exploited to study the ground state electron density in both elements and in complex compounds. It is important that those working in related fields, as well as the increasing number directly using the Compton method, have a comprehensive assessment of what is now possible and how to achieve it, in addition to a full understanding of its theoretical basis. This monograph is unique and timely, since little of what is described, was practicable a decade ago. The development of synchrotron radiation facilities has ensured that the technique described here will remain a powerful probe of electron charge and spin density for many years to come.

Author : John W. Humberston,M.R.C. McDowell
Publisher : Springer Science & Business Media
Page : 230 pages
File Size : 40,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461327516

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Positron Scattering in Gases by John W. Humberston,M.R.C. McDowell Pdf

The first conference in this series, devoted principally to the interaction of positrons in gases, was held at York University, Toronto, in July 1981 immediately preceding the XII ICPEAC in Gatlinburg, and the proceedings were published in the Canadian Journal of Physics, volume 60 (1982). So successful was this meeting that the decision was taken to hold a second one around the time of XIII ICPEAC in Berlin in 1983. London was clearly a convenient location but, rather than the obvious choice of University College London in central London, the Organising Committee decided that the beautiful and peaceful surroundings of Royal Holloway College would provide a more pleasant and intimate atmosphere for a small meeting. Even a small conference requires substantial sums of money to pay the expenses of invited speakers and when considering possible sources of funds the Organising Committee recognised that the intended format of the meeting and the international composition of the participants made it appropriate to apply to the NATO Science Committee for support under the Advanced Research Workshop Programme. This was one of the few successful applications made this year, and so it was that the conference became the 'NATO Advanced Research Workshop on Positron Scattering in Gases'. The Workshop, with approximately sixty participants, started after lunch on 19 July, 1983 and finished at mid-day on 23 July.

Author : F.A. Gianturco,G. Stefani
Publisher : Springer Science & Business Media
Page : 288 pages
File Size : 54,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642465024

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Wavefunctions and Mechanisms from Electron Scattering Processes by F.A. Gianturco,G. Stefani Pdf

Author : Anonim
Publisher : Unknown
Page : 64 pages
File Size : 42,6 Mb
Release : 1959
Category : Aeronautics
ISBN : STANFORD:36105024748530

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NASA Memorandum by Anonim Pdf

Author : University of Cincinnati. Basic Science Research Laboratory
Publisher : Unknown
Page : 516 pages
File Size : 51,6 Mb
Release : 1931
Category : Research
ISBN : UCAL:B3082791

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Quantum Theory in Biology; a Research Conducted by Herman Schneider ... and George Sperti ... by University of Cincinnati. Basic Science Research Laboratory Pdf

Author : David Murray Schneider,Richard Handler
Publisher : Duke University Press
Page : 268 pages
File Size : 53,8 Mb
Release : 1995
Category : Biography & Autobiography
ISBN : 0822316919

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Schneider on Schneider by David Murray Schneider,Richard Handler Pdf

To listen to David M. Schneider is to hear the voice of American anthropology. To listen at length is to hear much of the discipline's history, from the realities of postwar practice and theory to Schneider's own influence on the development of symbolic and interpretive anthropology in the 1970s and 1980s. Schneider on Schneider offers readers this rare opportunity, and with it an engrossing introduction into a world of intellectual rigor, personal charm, and wit. In this work, based on conversations with Richard Handler, Schneider tells the story of his days devoted to anthropology--as a student of Clyde Kluckhohn and Talcott Parsons and as a writer and teacher whose work on kinship and culture theory revolutionized the discipline. With a master's sense of the telling anecdote, he describes his education at Cornell, Yale, and Harvard, his fieldwork on the Micronesian island of Yap and among the Mescalero Apache, and his years teaching at the London School of Economics, Berkeley, and the University of Chicago. Musing on the current state and the future of anthropology, Schneider's cast of characters reads like a who's who of postwar social science. His reflections on anthropological field research and academic politics address some of the most pressing ethical and epistemological issues facing scholars today, while yielding tales of unexpected amusement. With its humor and irony, its wealth of information and searching questions about the state of anthropology, Schneider on Schneider not only provides an important resource for the history of twentieth-century social science, but also brings to life the entertaining voice of an engaging storyteller.