ArticleStructural dynamics (Melville, N.Y.)2018
Electron energy analysis by phase-space shaping with THz field cycles.
Article in Structural dynamics (Melville, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- High-repetition-rate ultrafast electron diffraction with direct electron detection.Structural dynamics (Melville, N.Y.) · 2024Article
- Femtosecond-resolved imaging of a single-particle phase transition in energy-filtered ultrafast electron microscopy.Science advances · 2023Article
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Authors and funding
3 authors.
Funding
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Abstract
Time-resolved electron energy analysis and loss spectroscopy can reveal a wealth of information about material properties and dynamical light-matter interactions. Here, we report an all-optical concept for measuring energy spectra of femtosecond electron pulses with sub-eV resolution. Laser-generated terahertz radiation is used to measure arrival time differences within electron pulses with few-femtosecond precision. Controlled dispersion and subsequent compression of the electron pulses provide almost any desired compromise of energy resolution, signal strength, and time resolution. A proof-of-concept experiment on aluminum reveals an energy resolution of <3.5 eV (rms) at 70-keV after a drift distance of only 0.5 m. Simulations of a two-stage scheme reveal that pre-stretched pulses can be used to achieve <10 meV resolution, independent of the source's initial energy spread and limited only by the achievable THz field strength and measuring time.
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Registered trials
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