Ultra-high amplitude isolated attosecond pulses generated by a two-color laser pulse interacting with a microstructured target

Shengzhan Wei, Yunliang Wang, Xueqing Yan, Bengt Eliasson

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
15 Downloads (Pure)

Abstract

A unique electron nanobunching mechanism using a two-color laser pulse interacting with a microstructured foil is proposed for directly generating ultraintense isolated attosecond pulses in the transmission direction without requiring extra filters and gating techniques. The unique nanobunching mechanism ensures that only one electron sheet contributes to the transmitted radiation. Accordingly, the generated attosecond pulses are unipolar and have durations at the full width at half-maximum about 5 attoseconds. The emitted ultrahigh-amplitude isolated attosecond pulses have intensities of up to ∼1021W/cm2, which are beyond the limitations of weak attosecond pulses generated by gas harmonics sources and may open a new regime of nonlinear attosecond studies. Unipolar pulses can be useful for probing ultrafast electron dynamics in matter via asymmetric manipulation.

Original languageEnglish
Article number025203
Number of pages9
JournalPhysical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume106
Issue number2
DOIs
Publication statusPublished - 15 Aug 2022

Keywords

  • laser
  • attosecond pulse
  • ultra-high amplitude isolated attosecond pulses
  • two-color laser pulse
  • microstructured target

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