Simon Engemann
Stanford University
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Publication
Featured researches published by Simon Engemann.
Proceedings of SPIE, the International Society for Optical Engineering | 2008
Aaron M. Lindenberg; Simon Engemann; K. J. Gaffney; K. Sokolowski-Tinten; Jörgen Larsson; David A. Reis; Patrick Lorazo; Jerome Hastings
Femtosecond time-resolved small and wide-angle x-ray diffuse scattering techniques are applied to investigate the ultrafast nucleation processes that occur during the ablation process in semiconducting materials. Following intense optical excitation, a transient liquid state of high compressibility characterized by large-amplitude density fluctuations is observed and the build-up of these fluctuations is measured in real-time. Small-angle scattering measurements reveal the first steps in the nucleation of nanoscale voids below the surface of the semiconductor and support MD simulations of the ablation process.
quantum electronics and laser science conference | 2006
David M. Fritz; Bernhard W. Adams; C. Blome; Phillip H. Bucksbaum; Adrian L. Cavalieri; Simon Engemann; S. Fahy; P. H. Fuoss; Kelly J. Gaffney; Patrick Hillyard; Jen Kaspar; Aaron M. Lindenberg; Sooheyong Lee; Brian K. McFarland; Drew A. Meyer; Éamonn D. Murray; Matthieu Nicoul; Reinhard Pahl; J. Rudati; D. P. Siddons; Klaus Sokolowski-Tinten; Jared K. Wahlstrand; Jerome Hastings; David A. Reis
We investigate high amplitude coherent optical phonon dynamics in bismuth through femtosecond X-ray and optical scattering. From these experiments, we present the first detailed measurements of changes in the interatomic potential following high-density photoexcitation.
15th International Conference on Ultrafast Phenomena (2006), paper WD7 | 2006
David M. Fritz; Bernhard W. Adams; C. Blome; Phillip H. Bucksbaum; Adrian L. Cavalieri; Simon Engemann; S. Fahy; P. H. Fuoss; K. J. Gaffney; Patrick Hillyard; Michael Horn-von Hoegen; Mathias Kammler; Jen Kaspar; Aaron M. Lindenberg; Sooheyong Lee; Brian K. McFarland; Drew A. Meyer; Eamonn Murray; Matthieu Nicoul; J. Rudati; D. P. Siddons; Klaus Sokolowski-Tinten; Dietrich von der Linde; Jerome Hastings; David A. Reis
We present the first detailed measurements of the interatomic potential of photoexcited bismuth using ultrafast optical and x-ray scattering. Our results show that electronic softening is responsible for the strong chirp in phonon frequency.
Science | 2007
David M. Fritz; David A. Reis; Bernhard W. Adams; R. A. Akre; J. Arthur; C. Blome; P. H. Bucksbaum; Adrian L. Cavalieri; Simon Engemann; S. Fahy; R. W. Falcone; P. H. Fuoss; Kelly J. Gaffney; M. J. George; Janos Hajdu; Marcus P. Hertlein; Patrick Hillyard; M. Horn-von Hoegen; M. Kammler; Jen Kaspar; Reinhard Kienberger; P. Krejcik; Sooheyong Lee; Aaron M. Lindenberg; Brian K. McFarland; Drew A. Meyer; T. Montagne; Éamonn D. Murray; A. J. Nelson; Matthieu Nicoul
Physical Review Letters | 2008
Aaron M. Lindenberg; Simon Engemann; Kelly J. Gaffney; Klaus Sokolowski-Tinten; Jörgen Larsson; Patrick Hillyard; David A. Reis; David M. Fritz; J. Arthur; R. A. Akre; M. J. George; A. Deb; P. H. Bucksbaum; Janos Hajdu; Drew A. Meyer; Matthieu Nicoul; C. Blome; Th. Tschentscher; Adrian L. Cavalieri; R. W. Falcone; S. H. Lee; Reinhard Pahl; J. Rudati; P. H. Fuoss; A. J. Nelson; P. Krejcik; D. P. Siddons; Patrick Lorazo; Jerome Hastings
Physical Review Letters | 2007
Patrick Hillyard; Kelly J. Gaffney; Aaron M. Lindenberg; Simon Engemann; R. A. Akre; J. Arthur; C. Blome; P. H. Bucksbaum; Adrian L. Cavalieri; A. Deb; R. W. Falcone; David M. Fritz; P. H. Fuoss; Janos Hajdu; P. Krejcik; Jörgen Larsson; S. H. Lee; Drew A. Meyer; A. J. Nelson; R. Pahl; David A. Reis; J. Rudati; D. P. Siddons; K. Sokolowski-Tinten; D. von der Linde; Jerome Hastings
Physical Review Letters | 2007
Patrick Hillyard; K. J. Gaffney; Aaron M. Lindenberg; Simon Engemann; R. A. Akre; J. Arthur; C. Blome; Phillip H. Bucksbaum; Adrian L. Cavalieri; A. Deb; R. W. Falcone; David M. Fritz; P. H. Fuoss; Janos Hajdu; P. Krejcik; Jörgen Larsson; S. H. Lee; Drew A. Meyer; A. J. Nelson; Reinhard Pahl; David A. Reis; J. Rudati; D. P. Siddons; K. Sokolowski-Tinten; D. von der Linde; Jerome Hastings
Bulletin of the American Physical Society | 2007
Patrick Hillyard; Kelly J. Gaffney; Aaron M. Lindenberg; Simon Engemann; David A. Reis; Aniruddha Deb; Drew A. Meyer; Jerome Hastings
Bulletin of the American Physical Society | 2007
Kelly J. Gaffney; C. Blome; Simon Engemann; David M. Fritz; Patrick Hillyard; Jörgen Larsson; Aaron M. Lindenberg; Matthieu Nicoul; David A. Reis; Klaus Sokolowski-Tinten; J. B. Hastings
quantum electronics and laser science conference | 2006
Aaron M. Lindenberg; Simon Engemann; Kelly J. Gaffney; Patrick Hillyard; J. B. Hastings; Klaus Sokolowski-Tinten; Matthieu Nicoul; Jörgen Larsson; David M. Fritz; David A. Reis; C. Blome
