Professor Justin Wark: Publications

Probing impulsive strain propagation with x-ray pulses

(2001)

Authors:

DA Reis, MF DeCamp, PH Bucksbaum, R Clarke, E Dufresne, M Hertlein, R Merlin, R Falcone, H Kapteyn, M Murnane, J Larsson, Th Missalla, J Wark

Coherent Phonon Spectroscopy using Time-Resolved X-ray Diffraction

Institute of Electrical and Electronics Engineers (IEEE) (2001) 115-116

Authors:

AM Lindenberg, I Kang, SL Johnson, RW Falcone, PA Heimann, T Missalla, Z Chang, RW Lee, JS Wark

Femtosecond X-ray diffraction: Experiments and limits

Proceedings of SPIE - The International Society for Optical Engineering 4143 (2001) 26-37

Authors:

JS Wark, AM Allen, PC Ansbro, PH Bucksbaum, Z Chang, M DeCamp, RW Falcone, PA Heimann, SL Johnson, I Kang, HC Kapteyn, RW Lee, R Merlin, G Naylor, HA Padmore, DA Reis, A Sjoegren, M Wulff

Abstract:

Although the realisation of femtosecond X-ray free electron laser (FEL) X-ray pulses is still some time away, X-ray diffraction experiments within the sub-picosecond domain are already being performed using both synchrotron and laser-plasma based X-ray sources. Within this paper we summarise the current status of some of these experiments which, to date, have mainly concentrated on observing non-thermal melt and coherent phonons in laser-irradiated semiconductors. Furthermore, with the advent of FEL sources, X-ray pulse lengths may soon be sufficiently short that the finite response time of monochromators may themselves place fundamental limits on achievable temporal resolution. A brief review of time-dependent X-ray diffraction relevant to such effects is presented.

Ultrafast modulation of x-rays using coherent phonons

Optics Infobase Conference Papers (2001)

Authors:

DA Reis, MF DeCamp, PH Bucksbaum, JM Caraher, R Clarke, CWS Conover, EM Dufresne, R Merlin, VA Stoica, J Wahlstrand, B Adams, JS Wark

Abstract:

Time-resolved x-ray diffraction experiments are presented showing ultrafast modulation of anomalous transmission and recurrence of Pendellosung oscillations in thick crystals. These results are discussed in the context of coherent control and femtosecond x-ray pulse generation.

A Thomson scattering post-processor for the MEDUSA hydrocode

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 71:2-6 (2001) 383-395

Authors:

J Hawreliak, D Chambers, S Glenzer, RS Marjoribanks, M Notley, P Pinto, O Renner, P Sondhauss, R Steel, S Topping, E Wolfrum, P Young, JS Wark

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