Molecular Dynamics and Spectroscopy by Stimulated Emission Pumping

Author: Hai-Lung Dai

Publisher: World Scientific

ISBN: 9789810221119

Category: Science

Page: 1120

View: 5538

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Since the first stimulated emission pumping (SEP) experiments more than a decade ago, this technique has proven powerful for studying vibrationally excited molecules. SEP is now widely used by increasing numbers of research groups to investigate fundamental problems in spectroscopy, intramolecular dynamics, intermolecular interactions, and even reactions. SEP provides rotationally pre-selected spectra of vibrationally highly excited molecules undergoing large amplitude motions. A unique feature of SEP is the ability to access systematically a wide variety of extreme excitations localized in various parts of a molecule, and to prepare populations in specific, high vibrational levels. SEP has made it possible to ask and answer specific questions about intramolecular vibrational redistribution and the role of vibrational excitation in chemical reactions.

Nonlinear Hamiltonian Mechanics Applied to Molecular Dynamics

Theory and Computational Methods for Understanding Molecular Spectroscopy and Chemical Reactions

Author: Stavros C. Farantos

Publisher: Springer

ISBN: 3319099884

Category: Science

Page: 158

View: 1798

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This brief presents numerical methods for describing and calculating invariant phase space structures, as well as solving the classical and quantum equations of motion for polyatomic molecules. Examples covered include simple model systems to realistic cases of molecules spectroscopically studied. Vibrationally excited and reacting molecules are nonlinear dynamical systems, and thus, nonlinear mechanics is the proper theory to elucidate molecular dynamics by investigating invariant structures in phase space. Intramolecular energy transfer, and the breaking and forming of a chemical bond have now found a rigorous explanation by studying phase space structures.

The Chemical Dynamics and Kinetics of Small Radicals

(In 2 Parts)

Author: Kopin Liu,Albert Wagner

Publisher: World Scientific

ISBN: 9814502049

Category: Science

Page: 1100

View: 6444

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'0Keywords:Kinetics;Chemical Dynamics;Molecular Beams;Radical Reactions;Photodissociation;Energy Transfer;Half-Collision Studies;Stereodynamics;Transition State Theory;Alignment Effects;Free Radical;Transition State;Potential Energy Surface;Hund''s Case;Doppler Effect;Orbital Alignment;Differential Cross Section;Vector Correlation;Collision ComplexCollision Complex'

Books in Print

Author: R.R. Bowker Company

Publisher: N.A

ISBN: N.A

Category: American literature

Page: N.A

View: 5162

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Books in print is the major source of information on books currently published and in print in the United States. The database provides the record of forthcoming books, books in-print, and books out-of-print.

Contributions

Author: Stanford University. Dept. of Chemistry

Publisher: N.A

ISBN: N.A

Category:

Page: N.A

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Contains reprints of articles published by members of the department.

IR-Spektroskopie

Eine Einführung

Author: Helmut G¿nzler,Hans-Ulrich Gremlich

Publisher: John Wiley & Sons

ISBN: 3527662871

Category: Science

Page: 365

View: 5090

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Die lange erwartete, vierte Auflage des Lehrbuchklassikers zur IR-Spektroskopie! Will man Substanzen eindeutig charakterisieren und auf ihre Reinheit berpr fen, f hrt kein Weg an der IR-Spektroskopie als Analysemethode vorbei. Pr zise und leicht verst ndlich, aktuell und sehr praxisbezogen lernen die k nftigen Anwender alles, was sie ber die IR-Spektroskopie wissen m ssen: - Aufbau und Handhabung von Spektrometern, - Vorbereitung der Proben und deren Messung, - qualitative Interpretation der Spektren, - quantitative Bestimmungen, - spezielle Anwendungsgebiete und - spezielle und verwandte Methoden. Zahlreiche Hinweise auf weiterf hrende Literatur vermitteln eine gute Orientierung bei speziellen Fragestellungen, und helfen dabei, sich zum Experten weiterzuentwickeln.

Ultrafast Phenomena XVI

Proceedings of the 16th International Conference, Palazzo dei Congressi Stresa, Italy, June 9--13, 2008

Author: Paul Corkum,Sandro de Silvestri,Keith A. Nelson,Eberhard Riedle,Robert W. Schoenlein

Publisher: Springer Science & Business Media

ISBN: 9783540959465

Category: Science

Page: 1031

View: 1140

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Ultrafast Phenomena XVI presents the latest advances in ultrafast science, including both ultrafast optical technology and the study of ultrafast phenomena. It covers picosecond, femtosecond and attosecond processes relevant to applications in physics, chemistry, biology, and engineering. Ultrafast technology has a profound impact in a wide range of applications, amongst them biomedical imaging, chemical dynamics, frequency standards, material processing, and ultrahigh speed communications. This book summarizes the results presented at the 16th International Conference on Ultrafast Phenomena and provides an up-to-date view of this important and rapidly advancing field.

Attosecond Angular Streaking

Attosecond time resolution with femtosecond laser pulses

Author: Petrissa Eckle

Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG

ISBN: 9783838106854

Category:

Page: 116

View: 3240

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In this thesis a new technique called 'attosecond angular streaking' (AAS) was applied for the first time. AAS allows to resolve ionization dynamics in the strong field regime with attosecond accuracy using only femtosecond pulses. In this regime, ionization mainly proceeds via tunneling through an energetically forbidden barrier. The process of tunneling is a fundamental and well-understood phenomenon in quantum mechanics. However, attempts to measure the 'tunneling time' have produced controversial results, partly due to the difficulty of defining a temporal operator in quantum mechanics, making it difficult to compare experiments. In this thesis, the question is addressed of whether the tunneling rate can adjust instantaneously to a changing barrier or if there is a delay between the field that defines the barrier and the corresponding tunneling ionization rate. It was found that indeed, no delay between the electric field and the corresponding tunneling rate exists within an experimental error limit of 12 attoseconds.

Ultrafast Phenomena IV

Proceedings of the Fourth International Conference Monterey, California, June 11–15, 1984

Author: D.H. Auston,K.B. Eisenthal

Publisher: Springer Science & Business Media

ISBN: 3642823785

Category: Technology & Engineering

Page: 512

View: 8831

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The motivating idea of the first Topical Meeting on Picosecond Phenomena, which took place at Hilton Head Island in 1978, was to bring together scien tists and engineers in a congenial setting who were developing picosecond lasers with those who were applying them to problems in chemistry, physics, electronics, and biology. The field has advanced remarkably in the following six years. This is reflected in the size of the conference which has more than doubled in the past six years and now includes scientists from many countries around the world. As evidenced by the papers in this volume, the appl ication of ultrafast 1 ight pulses continues to grow in new and diverse directions encompassing an increasingly wide range of subject areas. This progress has gone hand-in-hand with the development of new and more precise methods of generating and measuring ultrafast light pulses, which now extend well into the femtosecond time domain. It was this latter advance which was responsible for changing the name of the conference to Ultrafast Phenomena. The 1984 meeting was held at the Monterey Conference Center in Monterey, Cal ifornia from June 11 to 15 under the sponsorship of the Optical Society of America. A total of 320 registered participants, including 65 students, attended the three and one-half day conference. The overall enthusiasm of the participants, the high quality of the research presented, and ambiance of the setting combined to produce a successful and enjoyable conference.

Instrumentelle Analytik

Grundlagen - Geräte - Anwendungen

Author: Douglas A. Skoog,F. James Holler,Stanley R. Crouch

Publisher: Springer Spektrum

ISBN: 9783642381690

Category: Science

Page: 1030

View: 8605

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Das Standard-Lehrbuchs zur Instrumentellen Analytik, begründet von Skoog und Leary, ist hiermit endlich wieder auf Deutsch verfügbar. Als stark erweiterte, komplett überarbeitete Ausgabe unterstützt es fortgeschrittene Studenten der Chemie an Universitäten und Hochschulen. Es berücksichtig die Anforderungen einer großen Vielfalt an Disziplinen, die ein Grundwissen in Analytischer Chemie benötigen, und richtet sich damit auch an Physiker, Ingenieure und Biochemiker. Das Buch führt aktuell und kompetent in die Grundzüge und Feinheiten der heutigen Instrumentellen Analytischen Chemie ein. Der Focus liegt in diesem Buch auf den theoretischen Grundlagen der diversen Gerätetypen, deren optimales Anwendungsgebiet, Empfindlichkeit und Präzision sowie deren Grenzen. Über 700 detailreiche, selbsterklärende Abbildungen, Anhänge zu Statistik und Elektronik, Übungsaufgaben mit Lösungen und viele wichtige Originalzitate ergänzen dieses moderne Lehrbuch für Studierende und Praktiker.