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Related Experiment Video

Updated: Apr 26, 2026

$Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing$

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

Published on: April 25, 2019

Diffraction using laser-driven broadband electron wave packets.

Junliang Xu¹, Cosmin I Blaga¹, Kaikai Zhang²

¹1] Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA [2].

Nature Communications

|August 9, 2014

Summary

This summary is machine-generated.

Researchers developed a new imaging technique to directly observe atomic motion during molecular changes. This method uses laser-induced electron scattering for ultrafast, bond-specific structural analysis with picometre resolution.

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$Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene$

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Published on: August 22, 2017

Area of Science:

Ultrafast optical science
Physical chemistry
Molecular imaging

Background:

Directly monitoring atomic motion during molecular transformations at the atomic scale is a significant challenge.
Existing methods lack the required spatio-temporal resolution for transient structural determination.

Purpose of the Study:

To establish the foundation for a novel imaging method enabling direct observation of atomic motion.
To achieve atomic-scale spatio-temporal resolution for studying molecular transformations.
To enable bond-specific structural analysis with picometre precision.

Main Methods:

Developed fixed-angle broadband laser-induced electron scattering (LIBES).
Employed structural retrieval via one-dimensional Fourier transform of photoelectron energy distribution.
Utilized scattering of a broadband wave packet generated by strong-field tunnel ionization.

Main Results:

Demonstrated a method for structural retrieval with picometre spatial resolution and bond specificity.
Achieved inherent femtosecond temporal resolution.
Established the potential for time-resolved tomography of transient molecular structures.

Conclusions:

The proposed fixed-angle broadband LIBES technique provides a foundation for a new class of molecular imaging.
Combining the technique with molecular alignment offers a pathway for multi-dimensional transient structural determination.
This advancement opens new avenues for studying ultrafast chemical dynamics.