Femtosecond X-ray Pulses at 0.4 Å Generated by 90° Thomson Scattering: A Tool for Probing the Structural Dynamics of Materials

Schoenlein, R. W.; Leemans, W.P.; Chin, A. H.; Volfbeyn, P.; Glover, T. E.; Balling, P.; Zolotorev, M.; Kim, K.-J.; Chattopadhyay, Swapan; Shank, C. V.

doi:10.1126/science.274.5285.236

Cited by 445 publications

(285 citation statements)

References 13 publications

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“…For example, laser based sources have been shown to have a minimum x-ray pulse widths on order of 150 fs 3 , limited by the laser induced electron dynamics, while the temporal resolution of synchrotron sources are typically dictated by either ultrafast x-ray streak cameras 42,43 or the accelerated electron bunches [44][45][46][47][48] (∼100 fs). (Although x-ray free electron lasers have trains of attosecond x-ray pulses 49 , a simple method of isolating a single attosecond pulse will be technically challenging).…”

Section: Real-world Limits Of Trxrdmentioning

confidence: 99%

Reconstructing longitudinal strain pulses using time-resolved x-ray diffraction

et al. 2013

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Time-resolved x-ray diffraction is a very powerful tool for visualizing transient one-dimensional crystalline strains, ranging from crystal growth to shockwave production. In this work, we use picosecond x-ray diffraction to visualize transient strain formation from nanometer scaled laser excited gold films into crystalline substrates. We show that there is a direct correspondence between the measured time-resolved x-ray diffraction pattern and the transient acoustic wave, providing a straightforward method to make a reconstruction of the transient strain. In addition, we discuss real-world experimental constraints that place limits on the validity of the reconstructed transient acoustic wave.

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Section: Real-world Limits Of Trxrdmentioning

confidence: 99%

Reconstructing longitudinal strain pulses using time-resolved x-ray diffraction

et al. 2013

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“…The first demonstration of the generation of sub-picosecond duration x-ray pulses using 90 • TS was implemented at the Beam Test Facility of the Advanced Light Source at Lawrence Berkeley National Laboratory (LBNL) [7]- [9]. The generated X-ray pulse duration of 300 fs (FWHM) was determined by the convolution between the laser pulse duration (100 fs) and the crossing time of the laser across the tightly focused electron beam (200 -250 fs).…”

Section: Introductionmentioning

confidence: 99%

Femtosecond x-rays from Thomson scattering using laser wakefield accelerators

Catravas

Esarey

Leemans

2001

Meas. Sci. Technol.

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The possibility of producing femtosecond x-rays through Thomson scattering high power laser beams off laser wakefield generated relativistic electron beams is discussed. The electron beams are produced with either a self-modulated laser wakefield accelerator (SM-LWFA) or through a standard laser wakefield accelerator (LWFA) with optical injection. For a SM-LWFA (LWFA) produced electron beam, a broad (narrow) energy distribution is assumed, resulting in X-ray spectra that are broadband (monochromatic). Designs are presented for 3-100 fs X-ray pulses and the expected flux and brightness of these sources are compared.

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“…Two particular scenarios stand out in this regard, injection of ultra-short electron pulses in short wavelength laserdriven plasma accelerators [1], and Compton scattering of laser photons from short electron pulses [2,3]. Both of these applications demand synchronization, which is subpicosecond, with tens of femtosecond synchronization implied for next-generation experiments.…”

Section: Synchronization Of Sub-picosecondmentioning

confidence: 99%