Polarization Spectroscopy of Ionized Gases
Polarization Spectroscopy of Ionized Gases

Author: Sergi Kazantsev

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 218

ISBN-13: 9401727082

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Polarization Spectroscopy of Ionized Gases describes the physical principles of the technique and its applications to remote sensing. Transport phenomena and local anisotropies can be studied. The theoretical part of the book considers the basic phenomena of the ordering of the velocities of fast exciting charged particles. The polarization of the outer electron shells of excited atoms or molecules is described, and a variety of effects are examined in detail. An integral equation is derived which gives the intensity and polarization of emitted lines. Methods for solving the equation are analyzed. Universal spectropolarimetric remote sensing has been applied to low pressure gas discharges in the laboratory and to non-thermal processes in the solar atmosphere. For researchers interested in the remote sensing of ionized gases.

Laser Spectroscopy
Laser Spectroscopy

Author: Wolfgang Demtröder

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 997

ISBN-13: 3662051559

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Keeping abreast of the latest techniques and applications, this new edition of the standard reference and graduate text on laser spectroscopy has been completely revised and expanded. While the general concept is unchanged, the new edition features a broad array of new material, e.g., frequency doubling in external cavities, reliable cw-parametric oscillators, tunable narrow-band UV sources, more sensitive detection techniques, tunable femtosecond and sub-femtosecond lasers (X-ray region and the attosecond range), control of atomic and molecular excitations, frequency combs able to synchronize independent femtosecond lasers, coherent matter waves, and still more applications in chemical analysis, medical diagnostics, and engineering.

Practical Spectroscopy of High-Frequency Discharges
Practical Spectroscopy of High-Frequency Discharges

Author: Sergi Kazantsev

Publisher: Springer Science & Business Media

Published: 1998-01-31

Total Pages: 360

ISBN-13: 9780306456763

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A uniquely practical book, this monograph is the first to describe basic and applied spectroscopic techniques for the study of physical processes in high frequency, electrodeless discharge lamps. Special attention is given to the construction and optimization of these lamps, a popular source of line spectra and an important tool in ultraprecise optical engineering. Highlights include discussions of: high precision measurements of gas pressures spectral source lifespan and more.

Analysis of Excitation and Ionization of Atoms and Molecules by Electron Impact
Analysis of Excitation and Ionization of Atoms and Molecules by Electron Impact

Author: Afzal Chaudhry

Publisher: Springer Science & Business Media

Published: 2010-10-17

Total Pages: 236

ISBN-13: 1441969470

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The content of this book describes in detail the results of the present measurements of the partial and total doubly differential cross sections for the multiple-ionization of rare gas atoms by electron impact. These measurements show, beside other trends, the role of Auger transitions in the production of multiply ionized atoms in the region where the incident electron energy is sufficient to produce inner shell ionization. Other processes like Coster-Kronig transitions and shake off also contribute towards increasing the charge of the ions. The incident electron having energy of 6 keV, for example, in a collision with xenon atom can remove up to nine electrons! (*) X-ray-ion coincidence spectroscopy of the electron xenon atom collisions is also described. The present measurements of doubly differential cross sections for the dissociative and non-dissociative ionization of hydrogen, sulfur dioxide and sulfur hexa fluoride molecular gases by electron impact are also described in the text of this book. The results of the measurements for sulfur dioxide molecule show how this major atmospheric pollutant can be removed from the atmosphere by electron impact dissociation of this molecule. The present results of the measurements for sulfur hexa fluoride give an insight into the dissociation properties of this molecular gas, which is being so widely used as a gaseous insulator in the electrical circuits. The book also describes the present measurements of the polarization parameters of the fluorescence radiation emitted by the electron-impact-excited atoms of sodium and potassium. In these investigations the target atoms are polarized, therefore, the measurements of the polarization parameters give information about the electron atom interaction in terms of the interference, direct and exchange interaction channels.

Optogalvanic Effect in Ionized Gas
Optogalvanic Effect in Ionized Gas

Author: V N Ochkin

Publisher: CRC Press

Published: 1999-02-22

Total Pages: 214

ISBN-13: 9789069940014

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The physical formation mechanisms of optogalvanic effects in ionized gases are considered in this comprehensive monograph, as well as the effects themselves, and their diverse applications. The work explores the influence of irradiating light on the impedance of plasma discharges: glow discharges, discharges with hollow cathodes, and thermoionic diodes. Optogalvanic effects in flames and rarefied gas are also analyzed and optical schemes to study a number of phenomena which register optogalvanic signals are presented. The applications of the optogalvanic effect which are discussed include spectrochemical analysis techniques, high-precision laser frequency stabilization, plasma diagnostics, and isotope separation. Over the past 25 years the importance of low temperature discharges and gases in materials processing has been recognized, and this monograph will be an invaluable source of reference for research specialists in this area.

Frontiers of Laser Spectroscopy of Gases
Frontiers of Laser Spectroscopy of Gases

Author: A.C.P. Alves

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 529

ISBN-13: 9400930038

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This volume contains the lectures presented at the NATO Advanced Study Institute on "Frontiers of Laser Spectroscopy of Gases" held in the Hotel Golf Mar, Vimeiro, near Torres Vedras, Portugal from 30 March to 10 April 1987. The objective of the meeting was to take stock of the recent technological developments involving lasers and to assess their impact on spectroscopy. The whole range of wavelengths from the far infrared through to the extreme ultraviolet was covered. In addition, specific applications to both atoms and molecules were described. Indeed, one of the most successful and pleasant aspects of the Institute was the joint participation of atomic physicists and molecular spectro scopists, who meet all too rarely these days. The Institute also succeeded in covering a wide time span from the very earliest days of lasers to some of the very latest developments in both lasers and their applications to spectroscopy. There were 14 invited lecturers, giving a total of 40 lectures, and 89 other participants at the Institute. Each of the invited lecturers has contributed a chapter to this volume. In addition, on Thursday 2nd April a special one-day session was held in the Chemistry Department at the University of Coimbra to mark the retirement of Professor Dr. F.

Atomic Processes in Plasmas
Atomic Processes in Plasmas

Author: Albert L. Osterheld

Publisher: American Institute of Physics

Published: 1996

Total Pages: 328

ISBN-13:

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Contains papers based on 30 talks presented at the Tenth American Physical Society Topical Conference on Atomic Processes in Plasmas, held in San Francisco in January 1996. The volume begins with a section on atomic physics in tokamak plasmas, followed by sections covering atomic physics in astrophy