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Updated: Jun 8, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Versatile apparatus for attosecond metrology and spectroscopy.
M Fiess1, M Schultze, E Goulielmakis
1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany. markus.fiess@mpq.mpg.de
We developed the AS-2 Attosecond Beamline for ultrafast pump/probe experiments. This novel system generates isolated attosecond pulses, enabling real-time observation of attosecond dynamics.
Area of Science:
- Physics
- Quantum Optics
- Ultrafast Science
Background:
- Attosecond science requires precise generation and control of ultrashort laser pulses.
- Time-resolved experiments demand high temporal resolution to capture ultrafast phenomena.
Purpose of the Study:
- To introduce the AS-2 Attosecond Beamline for attosecond pump/probe experiments.
- To demonstrate a novel method for generating isolated attosecond pulses.
- To showcase the beamline's capability for real-time tracking of attosecond dynamics.
Main Methods:
- High harmonic generation (HHG) to produce extreme ultraviolet (XUV) continuum.
- Metal filters and multilayer mirrors for XUV pulse selection.
- A perforated mirror in a Mach-Zehnder interferometer for spatial separation of XUV and fundamental pulses.
- Active interferometer stabilization for precise temporal control.
Main Results:
- Successful generation of isolated attosecond laser pulses.
- Demonstration of spatial separation between XUV and fundamental pulses using a perforated mirror.
- Proof-of-principle photoelectron streaking experiments conducted.
- Real-time tracking of attosecond dynamics achieved through active stabilization.
Conclusions:
- The AS-2 Attosecond Beamline offers advanced capabilities for ultrafast science.
- The novel interferometer design enables unprecedented temporal resolution.
- The beamline holds significant potential for future attosecond dynamics research.
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