Download or read book Laser Induced Vibrational Energy Transfer and Chemical Reactions written by Shiann-Tsai Lin and published by . This book was released on 1977 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Induced Chemical Processes written by Jeffrey I. Steinfeld and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The possibility of initiating chemical reactions by high-intensity laser exci tation has captured the imagination of chemists and physicists as well as of industrial scientists and the scientifically informed public in general ever since the laser first became available. Initially, great hopes were held that laser-induced chemistry would revolutionize synthetic chemistry, making possible "bond-specific" or "mode-specific" reactions that were impos sible to achieve under thermal equilibrium conditions. Indeed, some of the early work in this area, typically employing high-power continuous-wave sources, was interpreted in just this way. With further investigation, however, a more conservative picture has emerged, with the laser taking its place as one of a number of available methods for initiation of high-energy chemical transformations. Unlike a number of these methods, such as flash photolysis, shock tubes, and electron-beam radiolysis, the laser is capable of a high degree of spatial and molecular localization of deposited energy, which in turn is reflected in such applications as isotope enrichment or localized surface treatments. The use of lasers to initiate chemical processes has led to the discovery of several distinctly new molecular phenomena, foremost among which is that of multiple-photon excitation and dissociation of polyatomic molecules. This research area has received the greatest attention thus far and forms the focus of the present volume.
Download or read book Laser Induced Chemical Reaction written by Robert Shiu Fuh Chang and published by . This book was released on 1976 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Biochemical Applications of Lasers V2 written by C. Bradley Moore and published by Elsevier. This book was released on 2012-12-02 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical and Biochemical Applications of Lasers, Volume II illustrates the current and potential applications of lasers in new fields of research in chemistry, biology, and other important fields. The book covers the laser spectroscopy of molecular jets; methods of high-resolution spectroscopy; vibrational relaxation in condensed phases; the distributions of quantum states encountered in chemical lasers and laser-induced chemical reactions; the hydrodynamics of biological systems; and developments in lasers such as the rare gas halide ultraviolet laser, which will find important new applications in chemistry and biology. Chemists, biologists, and physicists will find the book educational and insightful.
Download or read book Studies in Energy Transfer written by Melvin I. Buchwald and published by . This book was released on 1973 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Spectroscopy and Photochemistry on Metal Surfaces written by Hai-Lung Dai and published by World Scientific. This book was released on 1995 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using lasers to induce and probe surface processes has the advantages of quantum state specificity, species selectivity, surface sensitivity, fast time-resolution, high frequency resolution, and accessibility to full pressure ranges. These advantages make it highly desirable to use light to induce, control, or monitor surface chemical and physical processes. Recent applications of laser based techniques in studying surface processes have stimulated new developments and enabled the understanding of fundamental problems in energy transfer and reactions. This volume will include discussions on spectroscopic techniques, energy transfer, desorption dynamics, and photochemistry.
Download or read book Laser Applications in Chemistry written by K.L. Kompa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains lectures and seminars presented at the Nato Advanced Study Institute on "Laser Applications to Chemistry" held at San Miniato (Pisa) Italy, June 27 - July 11, 1982. We would like to give our recognition to all who contributed to the superb scientific quality and to the stimulating atmosphere of this summer school. In particular, we thank all speakers and participants in the discussions. We acknowledge the great efforts of Tito Arecchi as the director of the school, and the assistance of Mrs. Maria Bonaria Petrone and Mrs. Giovanna Ravini in the or ganization of the conference. On behalf of all participants we thank Miss Iva Arecchi for the friendly care she has taken and for her profound guidance through its history and the arts of the Toscana during the excursions. We are in particular indebted to Giacinto Scoles who organ ized this meeting together with Karl L. Kompa. Unfortunately, due to health reasons, Giacinto Scoles had to give up the idea of edit ing the proceedings of this meeting. Naturally, the change in the editorial staff caused a delay in the preparation of this volume. The subject of laser application to chemistry has not been review ed comprehensively in recent years. Many of the lectures andsem inars presented in San Miniato had the character of review arti cles. Therefore we feel that the material contained in this vol ume has not lost any of its actuality.
Download or read book Laser Induced Processes in Molecules written by K. L. Kompa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference on both the physics and chemistry of laser-induced processes in molecules was organized by the Quantum Electronics Divisional Board of the European Physical Society whose membership is given on p.367. The confer ence aim, to mix physicists and chemists interested in this exciting field both from Europe and further afield, was well fulfilled by the attendance of around 250 participants and the submission of about 100 papers, which dre presented here. Numerous people at both the Physics Department, Heriot-Watt University, Edinburgh, and at the Projektgruppe fUr Laserforschung, MPI, Garching, con tributed hard work to the organization; in addition to Dr. Bob Harrison, who bore the biggest burden with conspicuous success, we particularly thank Hugh MacKenzie, Richard Dennis and last but not least Miss Joanne Askham and the secretaries in Edinburgh together with Frau Doris Maischberger and the secretaries in Garching. December 1978 K.L. Kompa S.D. Smith Conren~ Part I. Study of Lasers and Related Techniques Suitable for Applications in Chemistry and Spectroscopy Rare Gas Halogen Lasers and Photochemical Applications. By S.D. Rockwood ... 3 Group VI Molecular Photolytic Dissociation Studies Using Rare Gas Halide Lasers. By M.C. Gower, A.J. Kearsley, and C.E. Webb ... 8 Broadly Tunable UV Source Based on Stimulated Raman Scattering.
Download or read book Studies of Energy Transfer and Selective Chemical Reaction Using Tunable IR Radiation written by Ian W. M. Smith and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunable infrared lasers have been used to excite selected vibrational levels of molecules for kinetic studies. It was demonstrated that stimulated electronic Raman scattering (SERS) in Cs vapour provides a useful tunable source between 2.7 and 3.3 micrometers. Later this source was supplanted by an optical parametric oscillator (OPO) supplying high energy pulses (1-5 mJ) over a wider range (1.5-3.6 micrometers). Both sources have been used in detailed studies of the relaxation of HCN. When finished these experiments will yield the most complete picture of relaxation rates and pathways in any simple polyatomic molecule. In addition, new direct methods have yielded rates of relaxation of (a) high vibrational levels in HF, and (b) NO and OH in collision with other free radicals. Finally, some preliminary work on selective laser-induced chemistry both in the gas-phase and in low temperature matrices has been carried out. (Author).
Download or read book Laser Induced Chemical Reactions written by Ann Elizabeth Orel and published by . This book was released on 1981 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrational Energy Transfer Processes in the DF HF DF CO2 and HF CO2 Chemical Lasers written by Ronald Regis Stephens and published by . This book was released on 1971 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lasers as Reactants and Probes in Chemistry written by William M. Jackson and published by . This book was released on 1985 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser induced Chemical Reactions H H2 F H2 H HF Cl H2 H HCl H LiF written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A classical model for the interaction of laser radiation with a molecular system is derived. This model is used to study the enhancement of a chemical reaction via a collision induced absorption. It was found that an infrared laser will in general enhance the rate of a chemical reaction, even if the reactants are infrared inactive. Results for an illustrative analytically solvable model are presented, as well as results from classical trajectory studies on a number of systems. The collision induced absorption spectrum in these systems can be written as the Fourier transform of a particular dipole correlation function. This is used to obtain the collision induced absorption spectrum for a state-selected, mono-energetic reactive collision system. Examples treated are a one-dimensional barrier problem, reactive and nonreactive collisions of H + H2, and a modified H + H2 potential energy surface which leads to a collision intermediate. An extension of the classical model to treat laser-induced electronically nonadiabatic collision processes is constructed. The model treats all degrees of freedom, molecular, electronic and radiation, in a dynamically consistent framework within classical mechanics. Application is made to several systems. Several interesting phenomena are discovered including a Franck-Condon-like effect causing maxima in the reaction probability at energies much below the classical threshold, laser de-enhancement of chemical reactions and an isotope effect. In order to assess the validity of the classical model for electronically nonadiabatic process (without a laser field), a model problem involving energy transfer in a collinear atom-diatom system is studied, and the results compared to the available quantum mechanical calculation. The calculations are in qualitative agreement.
Download or read book Laser Spectroscopy And Photochemistry On Metal Surfaces In 2 Parts Part 2 written by Hai-lung Dai and published by World Scientific. This book was released on 1995-12-16 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using lasers to induce and probe surface processes has the advantages of quantum state specificity, species selectivity, surface sensitivity, fast time-resolution, high frequency resolution, and accessibility to full pressure ranges. These advantages make it highly desirable to use light to induce, control, or monitor surface chemical and physical processes. Recent applications of laser based techniques in studying surface processes have stimulated new developments and enabled the understanding of fundamental problems in energy transfer and reactions. This volume will include discussions on spectroscopic techniques, energy transfer, desorption dynamics, and photochemistry.
Download or read book Laser Kinetic Studies of Electronic Energy Transfer Chemical Chain Reactions and Vibrational Relaxation Phenomena written by David John Nesbitt and published by . This book was released on 1982 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Biochemical Applications of Lasers V5 written by C. Bradley Moore and published by Elsevier. This book was released on 2012-12-02 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical and Biological Applications of Lasers, Volume V focuses on the laser applications in photochemistry and spectroscopy. This book examines the spectroscopic detection of single atoms and explores the purification of industrial chemicals. Organized into seven chapters, this volume starts with an overview of the methods developed for laser detection of single atoms, including fluorescence, photoionization, photodeflection, and their combinations. This text then discusses the methods of high resolution spectroscopy, which provide detailed information on molecular structure and reaction kinetics studies. Other chapters review several laser photodissociation studies, which explain dissociation dynamics. This book discusses as well the possibilities for selective photochemical reactions and examines the potential of lasers for practical application in chemical processing. The final chapter considers the various metals that can undergo a photochemical change in oxidation state in ordinary solvents. This book is a valuable resource for physicists, chemists, electrochemists, photochemists, electrical engineers, and chemical engineers.
Download or read book Laser Induced Chemical Processes written by and published by . This book was released on 1981-02-28 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
