# Spatial Properties of High-Order Harmonic Beams from Plasma Mirrors: A Ptychographic Study

Abstract : Spatial properties of high-order harmonic beams produced by high-intensity laser-matter interactions carry rich information on the physics of the generation process, and their detailed understanding is essential for applications of these light beams. We present a thorough study of these properties in the case of harmonic generation from plasma mirrors, up to the relativistic interaction regime. $In\ situ$ ptychographic measurements of the amplitude and phase spatial profiles of the different harmonic orders in the target plane are presented, as a function of the key interaction parameters. These measurements are used to validate analytical models of the harmonic spatial phase in different generation regimes, and to benchmark ultrahigh-order Maxwell solvers of particle-in-cell simulation codes.
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Journal articles
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Cited literature [49 references]

https://hal-cea.archives-ouvertes.fr/cea-02277333
Contributor : Caroline Lebe <>
Submitted on : Tuesday, September 3, 2019 - 3:08:57 PM
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### File

PhysRevLett.119.155001.pdf
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### Citation

A. Leblanc, S. Monchocé, H. Vincenti, S. Kahaly, J.-L. Vay, et al.. Spatial Properties of High-Order Harmonic Beams from Plasma Mirrors: A Ptychographic Study. Physical Review Letters, American Physical Society, 2017, 119, pp.155001. ⟨10.1103/PhysRevLett.119.155001⟩. ⟨cea-02277333⟩

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