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Related Concept Videos

Atomic Force Microscopy01:08

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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Related Experiment Video

Updated: May 28, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
11:33

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Attosecond metrology.

M Hentschel1, R Kienberger, C Spielmann

  • 1Institut für Photonik, Technische Universität Wien, Gusshausstr. 27, A-1040 Wien, Austria.

Nature
|December 6, 2001
PubMed
Summary
This summary is machine-generated.

Researchers achieved attosecond (10^-18 s) resolution for electronic dynamics using sub-femtosecond soft-X-ray pulses. This breakthrough enables the study of ultrafast electronic processes previously inaccessible with femtosecond (10^-15 s) laser pulses.

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11:33

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Published on: January 19, 2018

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
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Picometer-Precision Atomic Position Tracking through Electron Microscopy
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Area of Science:

  • Physics
  • Quantum Mechanics
  • Spectroscopy

Background:

  • Ultrashort laser pulses are crucial for studying matter dynamics.
  • Femtosecond pulses capture molecular dynamics but not attosecond electronic processes.

Purpose of the Study:

  • To achieve time resolution of 150 attoseconds (as) or less.
  • To trace electronic dynamics using sub-femtosecond soft-X-ray pulses and visible light.

Main Methods:

  • Utilized a sub-femtosecond soft-X-ray pulse.
  • Employed a few-cycle visible light pulse for probing.
  • Achieved attosecond synchronism between X-ray and visible pulses.

Main Results:

  • Demonstrated an attosecond response of the atomic system.
  • Measured a soft-X-ray pulse duration of 650 +/- 150 as.
  • Achieved attosecond resolution for electronic dynamics.

Conclusions:

  • Developed experimental tools for attosecond spectroscopy.
  • Opened avenues for studying bound electron dynamics on an attosecond timescale.