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Picosecond Snapshots of the Nanometer World

Claudio Cirelli

ISBN 10: 3639139224 / ISBN 13: 9783639139228
Published by VDM Verlag
New Condition: New Soft cover
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About this Item

96 pages. Dimensions: 8.7in. x 5.9in. x 0.2in.In order to observe phenomena on the molecular level, it is necessary to develop a technique that is sensitive to all the microscopic spatial degrees of freedom on the time scale of the molecular processes. For the case of surface physics, the standard tool for structure determination is Low-Energy-Electron-Diffraction (LEED). This technique, endowed in a so-called pump-probe experiment framework has the potential to follow in real time the excitation and the relaxation dynamics at surfaces on the picosecond time scale (1 ps10(-15) s). This book describes the realization of the first proof-of-principle experiment for time-resolved LEED (t-LEED). The design, realization and characterization of a home-built electron gun is presented: with such a tool, a temporal resolution of few picosecond was achieved. First experiments were performed to track in real time phase transitions occuring on surfaces and dynamics of the so-called space-charge effect: the emission of electrons on a metal surface by an intense pump pulse via multi-photon absorption processes. This item ships from multiple locations. Your book may arrive from Roseburg,OR, La Vergne,TN. Bookseller Inventory # 9783639139228

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Bibliographic Details

Title: Picosecond Snapshots of the Nanometer World

Publisher: VDM Verlag

Binding: Paperback

Book Condition:New

Book Type: Paperback

About this title

Synopsis:

In order to observe phenomena on the molecular level, it is necessary to develop a technique that is sensitive to all the microscopic spatial degrees of freedom on the time scale of the molecular processes. For the case of surface physics, the standard tool for structure determination is Low-Energy-Electron-Diffraction (LEED). This technique, endowed in a so-called 'pump-probe experiment' framework has the potential to follow in real time the excitation and the relaxation dynamics at surfaces on the picosecond time scale (1 ps=10^(-15) s). This book describes the realization of the first proof-of-principle experiment for time-resolved LEED (t-LEED). The design, realization and characterization of a home-built electron gun is presented: with such a tool, a temporal resolution of few picosecond was achieved. First experiments were performed to track in real time phase transitions occuring on surfaces and dynamics of the so-called space-charge effect: the emission of electrons on a metal surface by an intense pump pulse via multi-photon absorption processes.

About the Author:

Claudio Cirelli received his diploma degree in Physics from the University of Milan, Italy, in 2002. in January 2003, he joined the Surface Physics group at the University of Zurich, Switzerland. His research focuses on the investigation of dynamics of molecules and atoms on surfaces by means of time-resolved measurements.

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