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Article
Plasma mirrors for ultrahigh-intensity optics
Specular reflection is one of the most fundamental processes of optics. At moderate light intensities generated by conventional light sources this process is well understood. But at those capable of being prod...
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Article
Coherent dynamics of plasma mirrors
Emission coherence is crucial to the potential of future X-ray sources based on high-order harmonic generation from laser-driven plasmas. Contrary to expectations, coherent emission is possible, but only if th...
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Chapter and Conference Paper
Probing the dynamics of plasma mirrors on the attosecond time scale
We demonstrate that the generation of high-order harmonics (HHG) of a laser on plasma mirrors preserves the coherence of the laser. We then exploit this coherence to study the dynamics of the plasma electrons.
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Article
Enhanced ion acceleration with extremely thin foils
Enhanced backward-acceleration of ions is experimentally observed when ultra-short, high-intensity and ultra-high-contrast laser pulses interact with thin foils having thicknesses in the order of the penetrati...
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Article
High-order harmonic generation from plasma mirrors
We discuss the two mechanisms involved in high-order harmonic generation from plasma mirrors, and show that they can be clearly identified experimentally. The very different phase properties of the correspondi...
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Article
All-optical Compton gamma-ray source
One of the major goals of research for laser-plasma accelerators1 is the realization of compact sources of femtosecond X-rays2,3,4. In particular, using the modest electron energies obtained with existing laser s...
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Chapter and Conference Paper
The LUNEX5 Project in France
LUNEX5 (free electron Laser Using a New accelerator for the Exploitation of X-ray radiation of 5th generation) aims at investigating the production of short, intense, and coherent pulses in the soft x-ray regi...
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Article
Table-top femtosecond soft X-ray laser by collisional ionization gating
An improved table-top femtosecond soft X-ray laser with a gain duration of 450 fs is reported.
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Article
Phase-locked laser-wakefield electron acceleration
Subluminal and superluminal light pulses have attracted considerable attention in recent decades1–4, opening perspectives in telecommunications, optical storage and fundamental physics5. Usually achieved in matte...