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5 Result(s)

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  1. No Access

    Chapter and Conference Paper

    Time-resolved x-ray diffraction study of ultrafast acoustic phonon dynamics in Ge/Si-heterostructures

    Using time-resolved x-ray diffraction the ultafast strain dynamics in fslaserexcited Ge/Si-heterostructures has been studied. A fluence dependent, anharmonic dam** of the impulsively generated acoustic phono...

    K. Sokolowski-Tinten, A. Cavalleri, C. W. Siders, F. L. H. Brown… in Ultrafast Phenomena XII (2001)

  2. No Access

    Chapter and Conference Paper

    Direct Observation of Ultrafast Non-thermal Melting by Ultrafast X-ray Diffraction

    Ultrafast nonthermal melting of femtosecond laser-irradiated germanium was observed directly for the first time using sub-picosecond. 1.54-angstrom x-ray diffraction. Such measurements allow the study of trans...

    C. W. Siders, A. Cavalleri, K. Sokolowski-Tinten, Cs. Tóth… in Ultrafast Phenomena XII (2001)

  3. No Access

    Article

    Minimization of dispersion in an ultrafast chirped pulse amplifier using adaptive learning

    Minimizing residual frequency dispersion that accompanies pulse stretching, amplification, and recompression is an important consideration in ultrashort chirped-pulse amplifiers. Here we show how an adaptive l...

    A. Efimov, M.D. Moores, B. Mei, J.L. Krause, C.W. Siders, D.H. Reitze in Applied Physics B (2000)

  4. No Access

    Chapter and Conference Paper

    Nonequilibrium Superconductivity and Quasiparticle Dynamics in YBa2Cu3O7

    We use optical pump, coherent terahertz probe spectroscopy to transiently excite nonequilibrium populations of quasiparticles in YBa2Cu3O7−δ and monitor, with picosecond resolution, the superfluid and quasipartic...

    Jennifer L. W. Siders, R. N. Jacobs, C. W. Siders, S. A. Trugman… in Ultrafast Phenomena XI (1998)

  5. No Access

    Chapter and Conference Paper

    Measurement of Laser Wakefield Oscillations by Femtosecond Longitudinal Interferometry

    An ultrafast time-resolved measurement of plasma density oscillations in the wake of an intense, tightly focused laser pulse is presented.

    C. W. Siders, S. P. Le Blanc, D. Fisher, T. Tajima, M. C. Downer… in Ultrafast Phenomena X (1996)