TITLE

Single-shot ultrafast electron diffraction with a laser-accelerated sub-MeV electron pulse

AUTHOR(S)
Tokita, Shigeki; Inoue, Shunsuke; Masuno, Shinichiro; Hashida, Masaki; Sakabe, Shuji
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p111911
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have demonstrated single-shot measurement of electron diffraction patterns for a single-crystal gold foil using 340 keV electron pulses accelerated by intense femtosecond laser pulses with an intensity of 2×1018 W/cm2. The measured electron beam profile is faithfully reproduced by the numerical simulation of the electron trajectory, providing evidence that the electron pulse spontaneously expands in time owing to the velocity spread produced in the acceleration process, but is not distorted in an irreversible nonlinear manner. This study shows that the laser acceleration is promising for the development of pulse compression methods for single-shot femtosecond electron diffraction.
ACCESSION #
44292270

 

Related Articles

  • Vibrational dynamics of excited electronic states of molecular iodine. Scaria, A.; Namboodiri, V.; Konradi, J.; Materny, A. // Journal of Chemical Physics;10/14/2007, Vol. 127 Issue 14, p144305 

    Femtosecond degenerate four-wave-mixing spectroscopy following an initial pump laser pulse was used to observe the wave packet dynamics in excited electronic states of gas phase iodine. The focus of the investigation was on the ion pair states belonging to the first tier dissociating into the...

  • Filamentation of chirped pulses on long-range atmospheric paths. Fedorov, V. Y.; Shlenov, S. A.; Kandidov, V. P. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;May2009, Vol. 50 Issue 2, p185 

    A semi-analytical method has been proposed to analyse filamentation of powerful femtosecond laser pulses. The method is based on the multiplicative representation of pulse in space and time domains in the pre-filamentation region, where Kerr self-focusing is dominated. Systematic error due to...

  • Near-infrared femtosecond laser-induced crystallization of amorphous silicon. Jia-Min Shieh; Zun-Hao Chen; Bau-Tong Dai; Yi-Chao Wang; Alexei Zaitsev; Ci-Ling Pan // Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1232 

    Amorphous silicon (a-Si) was crystallized by femtosecond laser annealing (FLA) using a near-infrared (λ≈800 nm) ultrafast Ti:sapphire laser system. The intense ultrashort laser pulses lead to efficient nonlinear photoenergy absorption and the generation of very dense photoexcited plasma...

  • Gouy phase shift of single-cycle picosecond acoustic pulses. Holme, N. C. R.; Daly, B. C.; Myaing, M. T.; Norris, T. B. // Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p392 

    Ultrafast laser pulses are used to generate single-cycle picosecond acoustic pulses in thin metal films on silicon. For small initial excitation spot sizes, propagation of the acoustic pulses across a 485-μm Si crystal leads to significant diffraction effects. The temporal reshaping of the...

  • Spatial optimization of filaments. Walter, D.; Eyring, S.; Lohbreier, J.; Spitzenpfeil, R.; Spielmann, C. // Applied Physics B: Lasers & Optics;Jul2007, Vol. 88 Issue 2, p175 

    We demonstrate the spatial homogenization of intense laser pulses by adaptive minimization of spatial chirp of the spectrally broadened output pulses of a filament. A liquid-crystal-based two-dimensional spatial light modulator is used to control the spatial phase of the driver pulse. An...

  • A new walk-off compensated multipass scheme for large enhancement of conversion efficiency for fourth harmonic generation. Roy, S. Dutta; Gangopadhyay, S. // Applied Physics B: Lasers & Optics;Sep2009, Vol. 97 Issue 1, p129 

    A significant enhancement is treated in the energy of a fourth harmonic generated beam (266 nm) by employing the new technique of walk-off compensated multipass configuration without any change either in the beam parameters or in the intensity of the input fundamental laser radiation. As much as...

  • K radiation of foil under interaction with laser pulse of relativistic intensity. Andreev, A.; Platonov, K. // Optics & Spectroscopy;Jan2011, Vol. 110 Issue 1, p20 

    n analytical model of K radiation of thin laser targets has been developed. It has been shown that, for such targets, the motion of fast electrons is significant not only in the target itself but also in vacuum. The considered dependences for the free path length of a fast electron and for the...

  • Laser streaking of free electrons at 25 keV. Kirchner, F. O.; Gliserin, A.; Krausz, F.; Baum, P. // Nature Photonics;Jan2014, Vol. 8 Issue 1, p52 

    Recording electronic motion in atomic systems requires attosecond and picometre resolutions. Current attosecond technology provides photon pulses up to an energy range of 100 eV, with wavelengths far too long to access structures on the atomic scale. In contrast, ultrashort free-electron pulses...

  • Real-time characterization and optimal phase control of tunable visible pulses with a flexible compressor. Baum, P.; Lochbrunner, S.; Gallmann, L.; Steinmeyer, G.; Keller, U.; Riedle, E. // Applied Physics B: Lasers & Optics;2002 Supplement, Vol. 74 Issue 9, ps219 

    The output pulses of a noncollinearly phase-matched optical parametric amplifier (NOPA) are fully characterized by spectral phase interferometry for direct electric-field reconstruction (SPIDER). The SPIDER setup has been optimized for online diagnosis of tunable visible pulses with a 1 kHz...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics