Lossless Monochromator in an Ultrafast Electron Microscope Using Near-Field THz Radiation

Yannai, Michael; Adiv, Yuval; Dahan, Raphael; Wang, Kangpeng; Gorlach, Alexey; Rivera, Nicholas; Fishman, Tal; Krüger, Michael; Kaminer, Ido

doi:10.1103/physrevlett.131.145002

Cited by 5 publications

(2 citation statements)

References 70 publications

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“…Terahertz-compressed electron pulses have therefore no more spherical aberrations than a conventional electron beam. It is also possible to use our terahertz modulators to monochromatize a dispersed pulsed electron beam ( 45 ), to chop short narrow-band electron pulses out of longer ones ( 46 ), or to create almost any other desirable phase-space distributions for novel imaging techniques.…”

Section: Resultsmentioning

confidence: 99%

Terahertz control and timing correlations in a transmission electron microscope

Kuttruff,

Nabben,

Zimmermann

et al. 2024

Sci. Adv.

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Ultrafast electron microscopy provides a movie-like access to structural dynamics of materials in space and time, but fundamental atomic motions or electron dynamics are, so far, too quick to be resolved. Here, we report the all-optical control, compression, and characterization of electron pulses in a transmission electron microscope by the single optical cycles of laser-generated terahertz light. This concept provides isolated electron pulses and merges the spatial resolution of a transmission electron microscope with the temporal resolution that is offered by a single cycle of laser light. We also report the all-optical control of multi-electron states and find a substantial two-electron and three-electron anticorrelation in the time domain. These results open up the possibility to visualize atomic and electronic motions together with their quantum correlations on fundamental dimensions in space and time.

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Section: Resultsmentioning

confidence: 99%

Terahertz control and timing correlations in a transmission electron microscope

Kuttruff,

Nabben,

Zimmermann

et al. 2024

Sci. Adv.

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show abstract

“…These devices can also employ pulsed electron beams to probe transient phenomena, such as the behavior of quasiparticles that a material hosts. Now Michael Yannai of Technion-Israel Institute of Technology and his colleagues demonstrate a way to improve that capability by reducing the energy spread of the electrons in a pulsed imaging beam [1]. Their method leaves the brightness of the beam unchanged, which is important for ultrafast imaging, as the ultrashort pulses used in this method necessarily comprise small numbers of electrons.…”

mentioning

confidence: 99%