Plasma-state metasurfaces for ultra-intensive field manipulation.

Area of Science:

• Plasma physics
• Metasurface optics
• High-field science

Background:

• High-power lasers provide extreme intensities for plasma interactions but lack control methods due to optical element limitations.
• Metasurfaces offer precise light control but are typically confined to solid-state materials and low intensities.

Purpose of the Study:

• To demonstrate the feasibility of plasma-state metasurfaces (PSMs) for controlling intense laser fields.
• To extend metasurface capabilities into the plasma domain for high-field science applications.

Main Methods:

• Experimental demonstration of PSMs utilizing the photonic spin Hall effect.
• Generation of stable-propagating vortex beams under intense laser irradiation.
• Time-resolved pump-probe measurements to assess PSM functionality duration.

Main Results:

• Successful proof-of-concept for plasma-state metasurfaces.
• Generation of stable-propagating vortex beams achieved.
• PSM functionality demonstrated to persist for several picoseconds, suitable for femtosecond lasers.

Conclusions:

• Plasma-state metasurfaces offer a novel approach to manipulate high-power laser properties (amplitude, phase, polarization, wavefront).
• This technology is compatible with state-of-the-art multi-petawatt laser systems.
• PSMs open new avenues for laser-plasma interactions, including compact particle acceleration and novel radiation sources.