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Projecting picosecond lattice dynamics through x-ray topography

Synnergren, Ola LU ; Harbst, Michael LU ; Missalla, T; Larsson, Jörgen LU ; Katona, G; Neutze, R and Wouts, R (2002) In Applied Physics Letters 80(20). p.3727-3729
Abstract
A method for time-resolved x-ray diffraction studies has been demonstrated. As a test case, coherent acoustic phonon propagation into crystalline InSb is observed using a laser plasma x-ray source. An extended x-ray topogram of the semiconductor's surface was projected onto a high spatial resolution x-ray detector and acoustic phonons were excited by rapidly heating the crystal's surface with a femtosecond laser pulse. A correlation between the spatial position on the x-ray detector and the time of arrival of the laser pulse was encoded into the experimental geometry by tilting the incident laser pulse with an optical grating. This approach enabled a temporal window of 200 ps to be sampled in a single topogram, thereby negating the... (More)
A method for time-resolved x-ray diffraction studies has been demonstrated. As a test case, coherent acoustic phonon propagation into crystalline InSb is observed using a laser plasma x-ray source. An extended x-ray topogram of the semiconductor's surface was projected onto a high spatial resolution x-ray detector and acoustic phonons were excited by rapidly heating the crystal's surface with a femtosecond laser pulse. A correlation between the spatial position on the x-ray detector and the time of arrival of the laser pulse was encoded into the experimental geometry by tilting the incident laser pulse with an optical grating. This approach enabled a temporal window of 200 ps to be sampled in a single topogram, thereby negating the disadvantages of pulse-to-pulse fluctuations in the intensity and spectrum of the laser-plasma source. (C) 2002 American Institute of Physics. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
80
issue
20
pages
3727 - 3729
publisher
American Institute of Physics
external identifiers
  • wos:000175564100021
  • scopus:79956048877
ISSN
0003-6951
DOI
10.1063/1.1476957
language
English
LU publication?
yes
id
e7b8ee33-bdd3-4163-9753-75393f48ab33 (old id 338436)
date added to LUP
2007-11-15 12:33:27
date last changed
2017-01-01 04:38:55
@article{e7b8ee33-bdd3-4163-9753-75393f48ab33,
  abstract     = {A method for time-resolved x-ray diffraction studies has been demonstrated. As a test case, coherent acoustic phonon propagation into crystalline InSb is observed using a laser plasma x-ray source. An extended x-ray topogram of the semiconductor's surface was projected onto a high spatial resolution x-ray detector and acoustic phonons were excited by rapidly heating the crystal's surface with a femtosecond laser pulse. A correlation between the spatial position on the x-ray detector and the time of arrival of the laser pulse was encoded into the experimental geometry by tilting the incident laser pulse with an optical grating. This approach enabled a temporal window of 200 ps to be sampled in a single topogram, thereby negating the disadvantages of pulse-to-pulse fluctuations in the intensity and spectrum of the laser-plasma source. (C) 2002 American Institute of Physics.},
  author       = {Synnergren, Ola and Harbst, Michael and Missalla, T and Larsson, Jörgen and Katona, G and Neutze, R and Wouts, R},
  issn         = {0003-6951},
  language     = {eng},
  number       = {20},
  pages        = {3727--3729},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Projecting picosecond lattice dynamics through x-ray topography},
  url          = {http://dx.doi.org/10.1063/1.1476957},
  volume       = {80},
  year         = {2002},
}