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High-throughput beamline for attosecond pulses based on toroidal mirrors with microfocusing capabilities.
F Frassetto1, A Trabattoni2, S Anumula2
1National Research Council, Institute of Photonics and Nanotechnologies, via Trasea 7, 35131 Padova, Italy.
The Review of Scientific Instruments
|November 3, 2014
Summary
Researchers created a new attosecond beamline for advanced pump-probe experiments. This system achieves high-intensity extreme-ultraviolet (XUV) pulses using a novel optical setup and genetic algorithm optimization.
Area of Science:
- Ultrafast science
- Attosecond physics
- Optical engineering
Background:
- Attosecond pump-probe spectroscopy requires precisely controlled ultrashort pulses.
- Generating and focusing extreme-ultraviolet (XUV) radiation presents significant technical challenges.
Purpose of the Study:
- To develop a novel attosecond beamline for attosecond-pump/attosecond-probe experiments.
- To achieve microfocusing of XUV radiation with high intensity.
Main Methods:
- Designed a coma-compensated optical configuration using three toroidal mirrors.
- Employed a genetic algorithm for precise control of the optical elements.
- Generated trains of attosecond pulses.
Main Results:
- Successfully developed a novel attosecond beamline.
- Achieved microfocusing of XUV radiation.
- Generated attosecond pulse trains with a peak intensity of approximately 3 × 10^11 W/cm^2.
Conclusions:
- The novel beamline is suitable for attosecond-pump/attosecond-probe experiments.
- The implemented optical configuration and control method enable high-intensity XUV pulse generation and focusing.
