Spatial Aberrations in High-Order Harmonic Generation

Marius Plach; Federico Vismarra; Elisa Appi; Vénus Poulain; Jasper Peschel; Peter Smorenburg; David P. O’Dwyer; Stephen Edward; Yin Tao; Rocío Borrego-Varillas; Mauro Nisoli; Cord L. Arnold; Anne L’Huillier; Per Eng-Johnsson

doi:10.34133/ultrafastscience.0054

Ultrafast Science (Jan 2024)

Spatial Aberrations in High-Order Harmonic Generation

Marius Plach,
Federico Vismarra,
Elisa Appi,
Vénus Poulain,
Jasper Peschel,
Peter Smorenburg,
David P. O’Dwyer,
Stephen Edward,
Yin Tao,
Rocío Borrego-Varillas,
Mauro Nisoli,
Cord L. Arnold,
Anne L’Huillier,
Per Eng-Johnsson

Affiliations

Marius Plach: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Federico Vismarra: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Elisa Appi: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Vénus Poulain: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Jasper Peschel: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Peter Smorenburg: ASML Research, ASML Netherlands B.V., 5504 DR, Veldhoven, Netherlands.
David P. O’Dwyer: ASML Research, ASML Netherlands B.V., 5504 DR, Veldhoven, Netherlands.
Stephen Edward: ASML Research, ASML Netherlands B.V., 5504 DR, Veldhoven, Netherlands.
Yin Tao: ASML Research, ASML Netherlands B.V., 5504 DR, Veldhoven, Netherlands.
Rocío Borrego-Varillas: Institute for Photonics and Nanotechnologies, IFN-CNR, 20133 Milano, Italy.
Mauro Nisoli: Institute for Photonics and Nanotechnologies, IFN-CNR, 20133 Milano, Italy.
Cord L. Arnold: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Anne L’Huillier: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.
Per Eng-Johnsson: Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden.

DOI: https://doi.org/10.34133/ultrafastscience.0054
Journal volume & issue: Vol. 4

Abstract

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We investigate the spatial characteristics of high-order harmonic radiation generated in argon and observe cross-like patterns in the far field. An analytical model describing harmonics from an astigmatic driving beam reveals that these patterns result from the order and generation position-dependent divergence of harmonics. Even small amounts of driving field astigmatism may result in cross-like patterns, coming from the superposition of individual harmonics with spatial profiles elongated in different directions. By correcting the aberrations using a deformable mirror, we show that fine-tuning the driving wavefront is essential for optimal spatial quality of the harmonics.

Published in Ultrafast Science

ISSN: 2765-8791 (Online)
Publisher: American Association for the Advancement of Science (AAAS)
Country of publisher: United States
LCC subjects: Science: Physics; Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: https://spj.sciencemag.org/journals/ultrafastscience/

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