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Observation of Ultrafast Lattice Heating in thin Metal Films using Time-resolved Electron Diffraction

Published online by Cambridge University Press:  31 January 2011

Manuel Ligges ,
Carla Streubühr ,
Thorsten Brazda ,
Oliver Posth ,
Christph Hassel ,
Günter Dumpich ,
Ping Zhou  and
Dietrich von der Linde
Manuel Ligges
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Carla Streubühr
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Thorsten Brazda
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Oliver Posth
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Christph Hassel
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Günter Dumpich
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Ping Zhou
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
Dietrich von der Linde
Affiliation:
[email protected], University of Duisburg-Essen, Faculty of Physics, Duisburg, Germany
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Abstract

We show that time-resolved electron diffraction is capable of revealing the ultrafast lattice heating in thin metal films following excitation by a femtosecond laser pulse. The build-up of the lattice temperature leads to a reduction of the diffraction intensity of the various diffraction orders due to the Debye-Waller-effect. We also observed a reduction of the transmitted (000)-signal which exhibits the same temporal evolution as the diffraction signals.

Keywords

transmission electron microscopy (TEM)laserpolycrystal
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1230: Symposium MM – Ultrafast Processes in Materials Science , 2009 , 1230-MM03-08
Copyright
Copyright © Materials Research Society 2010

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