AI Article Synopsis
- Laser-generated high-harmonic generation produces extreme ultraviolet radiation characterized by its coherence and high peak power.
- Experiments showed that at higher laser intensities, the harmonic spectrum exhibited a higher cutoff, blueshifting, and broadening of individual orders.
- A model describing an expanding critical surface aligns well with the experimental findings, providing insights into the phenomenon.
Article Abstract
Laser-produced surface high-harmonic generation is an attractive source of extreme ultraviolet radiation due to its coherent properties and high peak power. By operating at subrelativistic laser intensities in the coherent wake emission regime, the harmonic spectrum was experimentally studied versus laser properties. At higher laser intensities (>10(17) W/cm(2)) a higher spectral cutoff was observed, with accompanying blueshifting and spectral broadening of the individual orders. A model based on an expanding critical surface provides qualitative agreement with the observations.
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| http://dx.doi.org/10.1364/OL.38.004026 | DOI Listing |
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