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Chromium/scandium multilayer mirrors for isolated attosecond pulses at 145 eV
Optics Letters
|June 16, 2015
Summary
Chromium/scandium multilayer mirrors efficiently reflect 600-attosecond pulses at 145 eV. These advanced optics are crucial for current and future attosecond experiments in this energy range.
Area of Science:
- Physics
- Optics
- Materials Science
Background:
- Attosecond soft x-ray sources operating below 10 nm necessitate advanced broadband multilayer optics for pulse manipulation.
- Current attosecond experiments in the sub-200-eV range can significantly benefit from improved optical components.
Discussion:
- Ion-beam-deposited chromium/scandium (Cr/Sc) multilayer mirrors were optimized through tailored deposition and interface polishing.
- These optimized mirrors were employed for generating single attosecond pulses from a high-harmonic cut-off spectrum centered at 145 eV.
Key Insights:
- Isolated attosecond pulses were successfully measured using soft x-ray-pump/NIR-probe electron streaking.
- Frequency-resolved optical gating for complete reconstruction of attosecond bursts (FROG/CRAB) was utilized for pulse characterization.
- Cr/Sc multilayer mirrors demonstrated efficient reflection of 600-attosecond pulses at 145 eV.
Outlook:
- The developed Cr/Sc multilayer mirrors are essential for enabling present and future attosecond experiments in the 145 eV photon energy range.
- Further advancements in multilayer optics will continue to drive progress in attosecond science and applications.
