Ultrafast electron microscopy with relativistic femtosecond electron pulses

Microscopy ◽  
2018 ◽  
Vol 67 (5) ◽  
pp. 291-295 ◽  
Author(s):  
Jinfeng Yang ◽  
Yoichi Yoshida ◽  
Hidehiro Yasuda
Keyword(s):  
Electron Microscopy ◽  
Femtosecond Electron Pulses ◽  
Electron Pulses

scholarly journals Relativistic Ultrafast Electron Microscopy: Single-Shot Diffraction Imaging with Femtosecond Electron Pulses

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Jinfeng Yang ◽  
Yoichi Yoshida
Keyword(s):  
Electron Microscopy ◽  
Spatial Coherence ◽  
Single Shot ◽  
Mean Square ◽  
High Quality ◽  
Excellent Spatial Resolution ◽  
Diffraction Imaging ◽  
Imaging Methodology ◽  
Femtosecond Electron Pulses ◽  
Electron Pulses

We report on a single-shot diffraction imaging methodology using relativistic femtosecond electron pulses generated by a radio-frequency acceleration-based photoemission gun. The electron pulses exhibit excellent characteristics, including a root-mean-square (rms) illumination convergence of 31 ± 2 μrad, a spatial coherence length of 5.6 ± 0.4 nm, and a pulse duration of approximately 100 fs with (6.3 ± 0.6) × 106 electrons per pulse at 3.1 MeV energy. These pulses facilitate high-quality diffraction images of gold single crystals with a single shot. The rms spot width of the diffracted beams was obtained as 0.018 ± 0.001 Å−1, indicating excellent spatial resolution.

scholarly journals Highly Coherent Femtosecond Electron Pulses for Ultrafast Transmission Electron Microscopy

2019 ◽  
Vol 205 ◽  
pp. 08014
Author(s):  
Nora Bach ◽  
Armin Feist ◽  
Till Domrose ◽  
Thomas Danz ◽  
Marcel Möller ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Electron Microscope ◽  
High Resolution ◽  
Detailed Characterization ◽  
Transmission Electron ◽  
Electron Imaging ◽  
Femtosecond Electron Pulses ◽  
Electron Pulses

We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Highly coherent electron pulses enable high resolution ultrafast electron imaging and diffraction.

scholarly journals Coherent transition radiation from attosecond electron pulses

2019 ◽  
Vol 205 ◽  
pp. 02018
Author(s):  
Maxim Tsarev ◽  
Peter Baum
Keyword(s):  
Electron Microscopy ◽  
Free Electron ◽  
Transition Radiation ◽  
Beam Diameter ◽  
Pump Probe ◽  
Coherent Transition Radiation ◽  
Electron Pulses ◽  
Velocity Mismatch

We show theoretically and by simulations how coherent transition radiation from tilted surfaces can be used for characterization of attosecond free-electron pulses such as used for pump-probe electron microscopy and diffraction. The tilted geometries eliminate velocity-mismatch and beam-diameter effects, providing sensitivity to attosecond times even for almost arbitrarily large beam diameters.

Localized Multiphoton Emission of Femtosecond Electron Pulses from Metal Nanotips

2007 ◽  
Vol 98 (4) ◽  
Author(s):  
C. Ropers ◽  
D. R. Solli ◽  
C. P. Schulz ◽  
C. Lienau ◽  
T. Elsaesser
Keyword(s):  
Femtosecond Electron Pulses ◽  
Electron Pulses

scholarly journals Temporal lenses for attosecond and femtosecond electron pulses

2009 ◽  
Vol 106 (26) ◽  
pp. 10558-10563 ◽  
Author(s):  
S. A. Hilbert ◽  
C. Uiterwaal ◽  
B. Barwick ◽  
H. Batelaan ◽  
A. H. Zewail
Keyword(s):  
Femtosecond Electron Pulses ◽  
Electron Pulses

scholarly journals MeV femtosecond electron pulses from direct-field acceleration in low density atomic gases

2015 ◽  
Vol 49 (2) ◽  
pp. 024001 ◽  
Author(s):  
Charles Varin ◽  
Vincent Marceau ◽  
Pascal Hogan-Lamarre ◽  
Thomas Fennel ◽  
Michel Piché ◽  
...  
Keyword(s):  
Atomic Gases ◽  
Low Density ◽  
Femtosecond Electron Pulses ◽  
Electron Pulses

scholarly journals Coulomb interactions in high-coherence femtosecond electron pulses from tip emitters

2019 ◽  
Vol 6 (1) ◽  
pp. 014301 ◽  
Author(s):  
Nora Bach ◽  
Till Domröse ◽  
Armin Feist ◽  
Thomas Rittmann ◽  
Stefanie Strauch ◽  
...  
Keyword(s):  
Coulomb Interactions ◽  
Femtosecond Electron Pulses ◽  
Electron Pulses ◽  
High Coherence
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