Femtosecond single-electron diffraction

Structural Dynamics
Stefan LahmePeter Baum

Abstract

Ultrafast electron diffraction allows the tracking of atomic motion in real time, but space charge effects within dense electron packets are a problem for temporal resolution. Here, we report on time-resolved pump-probe diffraction using femtosecond single-electron pulses that are free from intra-pulse Coulomb interactions over the entire trajectory from the source to the detector. Sufficient average electron current is achieved at repetition rates of hundreds of kHz. Thermal load on the sample is avoided by minimizing the pump-probe area and by maximizing heat diffusion. Time-resolved diffraction from fibrous graphite polycrystals reveals coherent acoustic phonons in a nanometer-thick grain ensemble with a signal-to-noise level comparable to conventional multi-electron experiments. These results demonstrate the feasibility of pump-probe diffraction in the single-electron regime, where simulations indicate compressibility of the pulses down to few-femtosecond and attosecond duration.

References

Nov 25, 2003·Science·Bradley J SiwickR J Dwayne Miller
Jan 28, 2004·Proceedings of the National Academy of Sciences of the United States of America·Chong-Yu RuanAhmed H Zewail
Sep 28, 2004·Physical Review Letters·O J LuitenM J van der Wiel
May 11, 2005·Proceedings of the National Academy of Sciences of the United States of America·Vladimir A LobastovAhmed H Zewail
Apr 8, 2006·Annual Review of Physical Chemistry·Ahmed H Zewail
Jul 21, 2006·The Journal of Physical Chemistry. B·H ParkJ Cao
Nov 13, 2007·Physical Review Letters·Nicola BoniniFrancesco Mauri
Feb 1, 2008·Physical Review Letters·Fabrizio CarboneAhmed H Zewail
Jul 7, 2009·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Chong-Yu RuanAric Pell
Dec 18, 2009·Nature·Brett BarwickAhmed H Zewail
Dec 14, 2011·The Journal of Chemical Physics·Sascha SchäferAhmed H Zewail
Sep 13, 2012·Accounts of Chemical Research·David J Flannigan, Ahmed H Zewail
Dec 12, 2012·Physical Review Letters·Simone WallMichael Horn-von Hoegen
Oct 15, 2013·The Journal of Physical Chemistry. B·Hubert Jean-RuelR J Dwayne Miller
Apr 8, 2014·Proceedings of the National Academy of Sciences of the United States of America·Wenxi LiangAhmed H Zewail

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Citations

Oct 28, 2015·Nature Communications·A GliserinP Baum
Jul 28, 2016·Science·A Ryabov, P Baum
Apr 23, 2016·Science·C KealhoferP Baum
Jul 5, 2016·Structural Dynamics·Ding-Shyue YangAhmed H Zewail
May 16, 2017·Structural Dynamics·Daniel R CremonsDavid J Flannigan
Jun 25, 2015·Nature Communications·Michael G PullenJens Biegert
Sep 29, 2015·Scientific Reports·Vladislav S YakovlevPeter Baum
Feb 13, 2016·Scientific Reports·Kirill V MitrofanovMuneaki Hase
Oct 9, 2019·Structural Dynamics·Lixin ZhangPieter Kruit
Aug 31, 2017·Structural Dynamics·Giovanni M VanacoreAhmed H Zewail
Apr 29, 2020·Structural Dynamics·Daniel X Du, David J Flannigan
Apr 3, 2016·The Review of Scientific Instruments·Alexander GliserinPeter Baum
Oct 24, 2018·Ultramicroscopy·Elisah J VandenBussche, David J Flannigan
Dec 16, 2016·ACS Applied Materials & Interfaces·Aniruddha AdhikariOmar F Mohammed
Sep 1, 2021·ACS Nano·Mikhail VolkovPeter Baum

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Methods Mentioned

BETA
electron diffraction
electron microscopy

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