Download or read book A Molecular Beam Experiment Using Laser Excited SF6 Molecules written by Eric Weitz and published by . This book was released on 1968 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Beams in Physics and Chemistry written by Bretislav Friedrich and published by Springer Nature. This book was released on 2021-06-19 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Open Access book gives a comprehensive account of both the history and current achievements of molecular beam research. In 1919, Otto Stern launched the revolutionary molecular beam technique. This technique made it possible to send atoms and molecules with well-defined momentum through vacuum and to measure with high accuracy the deflections they underwent when acted upon by transversal forces. These measurements revealed unforeseen quantum properties of nuclei, atoms, and molecules that became the basis for our current understanding of quantum matter. This volume shows that many key areas of modern physics and chemistry owe their beginnings to the seminal molecular beam work of Otto Stern and his school. Written by internationally recognized experts, the contributions in this volume will help experienced researchers and incoming graduate students alike to keep abreast of current developments in molecular beam research as well as to appreciate the history and evolution of this powerful method and the knowledge it reveals.
Download or read book Dynamics of Infrared Multiphoton Dissociation of SF6 by Molecular Beam Method Nonrandomize Excitation Energy written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The decomposition of polyatomic molecules by infrared multiphoton absorption is a subject which is under extensive investigation in many laboratories. The process has been shown to be efficient, selective and collisionless. The physical principles which are mainly responsible for the absorption of a large number of photons by an isolated molecule under intense infrared laser radiation have been elucidated through many experimental and theoretical investigations. However, one very important question which remains to be answered is the relation between the dynamics of molecular decomposition and the degree of vibrational excitation, i.e., the question of whether the excitation energy is completely randomized before molecular decomposition. The production of electronically excited fragments in the dissociation of halogenated hydrocarbons and the observations of SF4 fragment in the decomposition of SF6 without the evidence of the formation of lower energy SF5 fragment provided some basis of speculation that the excitation energy might not be randomized before the dissociation of excited molecules. A crossed molecular beam apparatus has been adapted to study the dynamics of excitation and dissociation of polyatomic molecules in intense IR laser fields. Initial experiments have involved the study of the dissociation of SF6 by CO2 laser radiation at 10.6 .mu.m. a molecular beam of SF6 was formed by supersonic expansion using three stages of differential pumping. A grating tuned pulsed CO2 TEA laser was used as the excitation source. The laser beam was focused by a 25 cm focal length ZnSe lens, and crossed the molecular beam near its focal point. The fragments produced by multiphoton dissociation of SF6 within the small interaction region were detected as a function of recoil angle and velocity.
Download or read book Atom Molecule and Cluster Beams II written by Hans Pauly and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book completes the physical foundations and experimental techniques described in volume 1 with an updated review of the accessory equipment indispensable in molecular beam experiments. It extends the subject to cluster beams and beams of hyperthermal and subthermal energies.
Download or read book Rarefied Gas Dynamics written by O.M. Belotserkovskii and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: 100 keV) of neutral hydrogen 7 atoms . The design of the cesium jettarget intended to achieve the 7 following goals : - Supersonic nozzle - cooled skimmer system to increase the fraction 8 of the total nozzle flux Jn which is used as the jettarget flux Jt, 8 = Jt/Jn, from low values 8
Download or read book Tunable Lasers and Applications written by A. Mooradian and published by Springer. This book was released on 2013-06-29 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tunable Lasers and Applications Conference was held in Loen, Norway, on June 6-11, 1976. This conference dealt with the technology of tunable lasers from the vacuum ultraviolet to the far infrared and their application in the areas of photochemistry, chemical kinetics, isotope separation, at mospheric photochemistry and environmental studies, photobiology, and spec troscopy. The need for such a conference grew out of the rapidly expanding use of tunable lasers in a broad range of disciplines. The conference was attended by 130 scientists representing Japan, Italy, West Germany, Canada, Israel, France, England, Norway, Sweden, Brazil, Den mark, Finland, the Netherlands, the Soviet Union, and the United States. The location of the conference in Loen, Nordfjord, was chosen because of the magnificent beauty of its aqua-blue fjords surrounded by glacier-capped mountains and lush green hillsides. The Alexandra Hotel was a perfect host for such a conference with first class services, superb smorgesbord, and ex cellent audio-visual facilities. The atmosphere was free of distractions and provided for a relaxed interchange of ideas. An afternoon hike was arranged to the Briksdal glacier while the highlight of the outdoor activities was a bus-ship excursion to the magestically splendid Geiranger fjord. A sumptuous banquet was followed by an interesting'and entertaining illustrated talk on high-speed and underwater photography by Professor Harold Edgerton from MIT. Financial support from our sponsors is gratefully acknowledged in help ing to make this conference a complete success.
Download or read book Chemical and Biochemical Applications of Lasers V3 written by C. Bradley Moore and published by Elsevier. This book was released on 2012-12-02 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical and Biochemical Applications of Lasers, Volume III presents the fundamental principles and methods of selective photophysical and photochemical processes. The book discusses isotopic separations and related research for each eight classes of laser methods, and their applications in chemistry, biology, and materials science. The experimental results on multiphoton infrared processes and their theoretical interpretation are likewise thoroughly discussed and described. Organic and inorganic chemists, physical chemists, and optical physicists will find the text a valuable reference material.
Download or read book Resonances A Volume In Honor Of The 70th Birthday Of Nicolaas Bloembergen written by M D Levenson and published by World Scientific. This book was released on 1990-10-29 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors are former students and research fellows of Prof Nicolaas Bloembergen, winner of the Nobel Prize, who has pioneered three distinct fields of science: NMR, masers and nonlinear optics. Each author has contributed a paper of current interest inspired by some aspect of Prof Bloembergen's 50-year career. This volume contains a historical record of one of the great scientists of the 20th century, including a complete bibliography of his papers, four of his most significant publications and evidence of his impact on generations of scientists.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encounters In Nonlinear Optics Selected Papers Of Nicolaas Bloembergen With Commentary written by Nicolaas Bloembergen and published by World Scientific. This book was released on 1996-09-14 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This selection of papers in the field of nonlinear optics contains reprints of original research, and general reviews written since 1960 up to the present. Brief comments by the author place each paper in a historical context of the evolution of nonlinear optics. Papers are selected from a more comprehensive bibliography either on the basis of their influence on subsequent developments or because they were originally published in journals or conference proceedings which are less easily accessible.
Download or read book Trends and Perspectives in Modern Computational Science written by George Maroulis and published by CRC Press. This book was released on 2006-10-27 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a collection of the lectures of the invited speakers and symposium organizers presented at the International Conference of Computational methods in Science and Engineering (ICCMSE 2006), held in Chania, Greece, October 2006. The content of the papers bears upon new developments of Computational Science pertinent to Physics, Chemistry, Biology, Medicine, Mathematics and Engineering. Molecular Science is a privileged ground for the application and evaluation of new mathematical tools and computational methods. In recent years, novelty and progress with greatest conceivable speed is common experience. This flavor of research findings carrying many consequences for distant fields is easily evidenced in the lectures collected in this volume.
Download or read book Gas Kinetics and Energy Transfer written by and published by . This book was released on 1981 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Laser Excited Molecules by Maser and Molecular Beam Electric Resonance MBER Spectroscopy written by Shelley Lynne Shostak and published by . This book was released on 1986 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 1550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photochemistry written by D Bryce-Smith and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Multiple Photon Excitation and Dissociation of Polyatomic Molecules written by Cyrus D. Cantrell and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1970s, researchers in Canada, the Soviet Union and the United States discovered that powerful infrared laser pulses are capable of dissociating mole cules such as SiF4 and SF6' This result, which was so unexpected that for some time the phenomenon of multiple-photon dissociation was not recognized in many cir cumstances in which we now know that it occurs, was first publicized at a time when the possibility of using lasers for the separation of isotopes had attracted much attention in the scientific community. From the mid-1970s to the early 1980s, hun dreds of experimental papers were published describing the multiple-photon absorp tion of C02 laser pulses in nearly every simple molecule with an absorption band in the 9 - 11 jJm region. Despite this impressive volume of experimental results, and despite the efforts of numerous theorists, there is no agreement among re searchers in the field on many fundamental aspects of the absorption of infrared laser light by polyatomic molecules. This book is devoted to reviells of the experimental and theoretical research that provides the foundations for our current understanding of molecular multiple photon exc itat i on, and to rev i ews of research that is pert i nent to the 1 aser sep aration of isotopes.
