Chromium/scandium multilayer mirrors for isolated attosecond pulses at 145 eV

Alexander Guggenmos*, Michael Jobst, Marcus Ossiander, Stefan Radünz, Johann Riemensberger, Martin Schäffer, Ayman Akil, Clemens Jakubeit, Philip Böhm, Simon Noever, Bert Nickel, Reinhard Kienberger, Ulf Kleineberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Recent advances in the development of attosecond soft x-ray sources toward photon wavelengths below 10 nm are also driving the development of suited broadband multilayer optics for steering and shaping attosecond pulses. We demonstrate that current attosecond experiments in the sub- 200-eV range benefit from these improved optics. We present our achievements in utilizing ion-beam-deposited chromium/scandium (Cr/Sc) multilayer mirrors, optimized by tailored material dependent deposition and interface polishing, for the generation of single attosecond pulses from a high-harmonic cut-off spectrum at a central energy of 145 eV. Isolated attosecond pulses have been measured by soft x-ray-pump/NIR-probe electron streaking experiments and characterized using frequency-resolved optical gating for complete reconstruction of attosecond bursts (FROG/CRAB). The results demonstrate that Cr/Sc multilayer mirrors can be used as efficient attosecond optics for reflecting 600-attosecond pulses at a photon energy of 145 eV, which is a prerequisite for present and future attosecond experiments in this energy range.

Original languageEnglish
Pages (from-to)2846-2849
Number of pages4
JournalOptics Letters
Volume40
Issue number12
DOIs
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fields of Expertise

  • Advanced Materials Science

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