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Attosecond dispersion control by extreme ultraviolet multilayer mirrors
Michael Hofstetter1, Martin Schultze, Markus Fiess
1Ludwig-Maximilians-Universität München, Fakultät für Physik, Am Coulombwall 1, D-85748 Garching, Germany. michael.hofstetter@mpq.mpg.de
Optics Express
|March 4, 2011
Summary
We demonstrated a new method using a-periodic multilayer mirrors to control the frequency sweep of attosecond extreme ultraviolet (XUV) pulses. This advance enhances attosecond pulse generation for advanced scientific measurements.
Area of Science:
- Physics
- Quantum Optics
- Materials Science
Background:
- Attosecond extreme ultraviolet (XUV) pulses are crucial for probing ultrafast dynamics.
- Controlling the frequency sweep (chirp) of these pulses is essential for precise measurements.
- Existing methods for dispersion control have limitations in range and tunability.
Purpose of the Study:
- To experimentally demonstrate a-periodic multilayer mirrors for controlling the chirp of isolated attosecond XUV pulses.
- To show the engineerability of this dispersion control across various XUV photon energies and bandwidths.
- To enable the generation of tailor-made attosecond pulses with enhanced photon flux.
Main Methods:
- Experimental demonstration using approximately 200-attosecond XUV pulses.
- Photon energy range of 100-130 eV.
- Measurement via photoelectron streaking in neon gas.
Main Results:
- Successful experimental demonstration of attosecond dispersion control using a-periodic multilayer mirrors.
- Proof-of-concept achieved with ~200-attosecond pulses in the 100-130 eV range.
- Demonstrated engineerability of dispersion control for a wide range of XUV energies and bandwidths.
Conclusions:
- A-periodic multilayer mirrors provide effective control over attosecond XUV pulse chirp.
- This technique allows for the generation of tailor-made attosecond pulses with significantly enhanced photon flux.
- The advancement is expected to greatly benefit attosecond metrology, spectroscopy, and their applications.
