AI Article Synopsis
- A new method for creating structured plasma on solid targets using light is developed, allowing for control over the patterns that form.
- Researchers successfully created adjustable sinusoidal plasma grating patterns and examined how they interact with intense laser pulses.
- This technique can be utilized as a measuring tool for determining the size of high-order harmonic beams, paving the way for advancements in laser-plasma interaction measurement and ultrahigh intensity plasmonics.
Article Abstract
A general approach for optically controlled spatial structuring of overdense plasmas generated at the surface of initially plain solid targets is presented. We demonstrate it experimentally by creating sinusoidal plasma gratings of adjustable spatial periodicity and depth, and study the interaction of these transient structures with an ultraintense laser pulse to establish their usability at relativistically high intensities. We then show how these gratings can be used as a "spatial ruler" to determine the source size of the high-order harmonic beams produced at the surface of an overdense plasma. These results open new directions both for the metrology of laser-plasma interactions and the emerging field of ultrahigh intensity plasmonics.
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| http://dx.doi.org/10.1103/PhysRevLett.112.145008 | DOI Listing |
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